Dovetail groove dimensions. 1502 CNC Profile. Dovetail groove dimensions

 
 1502 CNC ProfileDovetail groove dimensions  Keyseat

Five degree sloping sides are easier to machine and are suitable for lower pressures. If you are looking for a comprehensive guide on O-Ring design, selection, and application, you should download the Parker O-Ring Handbook (ORD 5700) pdf. They also have different groove angles as shown below. O-Ring Metric Groove Design [PDF] Seal & Design Company Info. Solid Carbide Dovetail Cutters for Half Dovetail O-Ring Grooves. The straight calibration surface 16 corresponds to the reference surface 9, the inclined calibration surface 17 corresponds to the detection surface 10, the size of the standard calibration block 13 is consistent with the design size of the tested dovetail groove, different sizes of the dovetail grooves need to be manufactured into different. This document covers the basics of O-Ring sealing, elastomer properties, and dynamic and static design criteria. * Please note that some AS568-0XX O-rings have atypical cross. Undercutting. 101. To create a retaining-ring groove, click the Retaining Ring Grooves tab. Create dovetail grooves that allow O-rings to flex without falling out of place. The high component value and complexity make process security essential. Need space in groove to allow for volume swell, thermal expansion, and increasing width due to squeeze. O-Ring Face Seal Glands These dimensions are intended primarily for face type O-ring seals and low temperature applications. GROOVE 'N TURN dovetail inserts fit existing "L" series THINBIT toolholders. 10 0. 2001; Eckelman and Haviarova 2006; Noll 2007). to 500” I. With dovetail sights, you simply file the Sight, never the dovetail. It wouldn't make any difference complexity wise whether you were cutting a single or double dovetail groove. Groove Width. x = surface finish in µm Ra Fig. KENAT: Regarding the taper in the plan view of your new sketch, consider the Fig 6-24, (p. 125, and . Generally, dovetail design offers a possiblity of mount installment without screws going into the receiver. To help you maximize o-ring performance, this dovetail o-ring groove design guide provides default recommendations to find the perfect o-ring dimensions. The rest of the world relies on Parker Metric Kit #1, which contains 32 of the most common metric o-ring sizes forRe: Size of dovetail in CZ 452. Tongue & Groove Wood Joints have 1/3 widths and full joint depths. The front ring is lower than the rear ring. Take the dovetail guide and align it to the groove on the top of the base. 0569 ; 60°/. 139 inch (3. The inward-slanting walls of the dovetail groove prevent the tail from pulling straight out. Create your own clamp tracks anywhere you can route. 44 Static seal – dovetail groove 46 Dynamic seal – hydraulic 49 Sizing charts 50 2-xxx sizes 55 3-xxx sizes 56 5-xxx sizes 57 6-xxx sizes. Route 1/4” relief grooves to prep the MATCHFIT Dovetail Router Bit. Choose from our selection of dovetail milling cutters in a wide range of styles and sizes. Dovetail grooves are used to hold the O-ring in-place on a face seal groove during. 1-30). Since a dovetail gland does not work with plastic components due to undercuts, nubs can be added to the groove wall to pinch the o-ring in isolated locations. 75” dovetail fixture with a maximum workpiece size of 7. Table B Static Axial Seal Gland Dimensions 4 Tolerance +. → Order a Sample Pack. 5”-3. e. 001" increments Inserts can groove, turn/bore and generate profiles. comToolpath 1. b Groove outside diameter. DT3/8-15. Table B Static Axial Seal Gland Dimensions 4 Tolerance +. Most of the dimensions stated in this catalogue are nor-mally (but not as a matter of course) available ex stock. While the outer appearance mirrors a simple miter joint, the interior hides the intricate dovetailing that offers superior strength. Less time sanding, more time building. Gland width is to sharp edge of groove. Misunderstanding a Dovetail’s True Neck Diameter. Roughing cutters are typically used to machine workpieces somewhat over the desired finish dimensions, after which a finishing cutter is used to produce closer tolerances or a. However, installing an O-ring into these grooves can be tricky without proper technique. Gland Design Dovetail Grooves Inches; Gland Design Dovetail Grooves Metric;1--marcorubber. 275 . Exert versatile clamping pressure without interfering with the operation by containing the MATCHFIT Dovetail Clamp head arm within the dovetail groove. 5 mm). Specifically, grooves are designed with a narrower opening width in order to “pinch” the seal into position. If this is the case, lack of space can damage the O-ring and affect the quality of sealing. All of the parts for the box will be full size. Besides the base and saddle, most dovetail slides have four other parts. The dimensions of the bottom should be 1/2" longer (in each direction) than the inside dimensions of the dovetail drawer box. Half Dovetail Groove Detail For dovetail grooves, match the centerline of the groove with the centerline of the O-ring. How. Select the type of O-ring groove - piston, rod, face seal or trapped seal. Dimensions metric groove dovetail axial radial standard rubbershopGroove ring metric reference applications basic seabrook po 1150 nh box Industrial o-ring providerRing groove chart dimensions installation oring seal rod. 0545. Special orders in 4-6 working days. e. Below are our sight offerings for 1911 pistols with Novak® LoMount dovetail cuts: Please confirm slide dovetail cuts and dimensions with your firearm’s manufacturer, or a local gunsmith prior to purchase (below are the Novak® LoMount dimensions). 005 clearance per side): Calculator Output Precision: decimal digits. This groove can either be extruded, or machined using a special dovetail cutter which is available from Spira. LittleMachineShop. Contact Us For Assistance Or Samples Click Here and contact us today to receive a quote or if you have any questions regarding sizing. The KLICK connector serves as a non-visible, snap-in connector for components with small dimensions, such as Moulding and trims. 7 mm across the top which means that it is wider than the 11 mm dovetail. Item Dimensions LxWxH ‎4. Roughing cutters are typically used to machine workpieces somewhat over the desired finish dimensions, after which a finishing cutter is used to produce closer tolerances or a better surface finish. or . Wood joints are typically used in wood members with widths between . This Global O-Ring and Seal Size Reference Guide covers the Aerospace Standard AS568 O-Ring Sizes published by the Society of Automotive Engineers (S. 5” (3. 375" As I said in my post, I like to make that distance . For a face seal: a compression ratio of 20-30%. Bellevue, WA 98005 USA Phone: (800) 562-8375 Fax: (425) 372-2001 info@aronson-campbell. Thinbit, manufactured by Kaiser Tool Company, has expanded its Groove ‘N Turn line to include dovetail grooving inserts. Round shank sizes are available in diameters of 1/2”, 5/8”, 3/4”, 1”, 20 mm and 25 mm. This results in smoother dovetail grooves and keeps your Dovetail Bit lasting longer. 015: 2: $68: $72:. Groove Diameter ±. 054. Design Charts II & III (see pp 7-8) provide dimensional recommendations for full and half-dovetail vacuum seal O-ring grooves. For applications requiring more than two or three. 1-30). a Pitch diameter. Standard cutters matching the groove details are commercially available through tooling suppliers. By simply entering installation specifications for an application, it recommends O-Ring sizes, housing layout and. Using the table above, determine the maximum recommended gland depth for your application. Situations causing overfill may be thermal expansion resulting from high heat, or O-ring swell due to the seal material absorbing some of the fluid. To measure the width between two dovetail grooves, one millimeter pins were inserted into the dovetails on either side and a dial caliper measured the distance between the sides of the two pins. The table below shows the recommended O-ring groove dimensions for different sizes as per. Blind Miter Dovetail Wood Joints have 2 to 4 joints and full joint depths. Step 2. Learn how to make box joints in this woodworking article. Face seal o-rings pop out easily, yeah. male. 150 in. b Groove outside diameter. E. Anschutz changed their foresight mount in 1987, when the 1900 smallbore rifles replaced the 1800. $ 28. The O-ring groove calculator enables engineers to specify an O-ring groove for any given O-ring or vice versa calculates the best suitable size O-ring for any given groove. These groove cutters are custom cut two-fluted end mill, made of Carbide. For reciprocating O-rings: a compression ratio of 10-20%. From this data, B-Square compiled a list of scope groove dimensions for many models of air rifles. A 1/6-slope tail should be measured out like this:This has grooves cut into the receiver, but a circular profile between them. 122 0. (***) Similar to O-rings, the Quad-Rings®/X-Rings need a squeeze of 10 to 15%. Since the glue may degrade the shielding, use as little as possible to hold the. It provides axial compression (face type) groove dimensions for aerospace metric O-ring sizes specified in MA2010. Burris 1" Rings Ruger 77 Extended Rear. Optimized for milling dovetail grooves into a part, Micro 100's solid carbide Dovetail Cutters are offered with 30°, 60°, and 90° included angles and in both uncoated and AlTiN coated styles. They used to also use these fractional dimensions as the gland size. A wider dovetail offers more support. Can anyone tell me the nominal dimensions of a rear Novak dovetail groove for a 1911? I have a pistol with a "novak style" (i. The online O-Ring Calculator offers engineers and professionals a quick and easy way to calculate O-Ring dimensions and the appropriate housing layout in accordance with the international O-Ring standard ISO 3601. D40xa60°xd20 Dovetail Groove Milling Cutter, 6 Flute High Cutting. Tariff Code. Catalog excerpts. Why should you invest in a quick-release system? Because screwing your camera or lens onto a platform with a standard ¼"-20 screw is tedious and insecure. SAE AS568B: American standard for O-rings. e. The face seal design chart below explains the hardware dimensions to use for an O-ring seal when the. Parker O-Ring Vacuum Sealing Guide is a comprehensive pdf document that provides technical information and best practices for designing and selecting o-ring seals for vacuum applications. The tool should have the correct shape and width to create the desired groove. See the Dovetail Groove Cutter data sheet for more information (page 36). So, the nominal size is in fact based on the gland size and not the O-ring size. 433" so I would assume that you could follow the directions for the 3/8" dovetail but make the distance between the grooves about . The 11 mm dovetail has a 60-degree angle, while the 3/8” dovetail has a 45-degree angle. Insuffi cient radius will potentially cause damage to the O-ring during installation, while excessive radius may contribute to extrusion. A. Adding to the challenges is the common use of difficult-to-machine materials solid Inconel 718 and cladded Inconel 625. Gland width is to sharp edge of groove. Generally, these values can be adopted for other materials and material hardnesses, the groove depth may have to be adjusted. They both measure about the same width when measured at the same locations. com. The Standard O-ring groove is typically used in applications where there is a need for a static seal, such as in hydraulic systems. When machining this groove, a standard o-ring groove must be machined first. 003. Novak's will fit but it is recommended purchase of Novak for Kimber (because they are nearly but not precisely the same). Includes (6) 1" track screws. These groove dimensions are for compounds that free swell less than 15%. (I used a 14°, 1/2″ wide bit, the standard for half-blind dovetail jigs. 070 ±. 101 0. The dovetail grooving inserts are intended to machine O-ring dovetail grooves with 66-degree undercut angles. To finish this box, how about we go and cut a groove in the bottom here and insert a plywood bottom. Inser. Side wall angle is to allow for releasing of molded parts. Dovetail grooving inserts are used to machine O-ring dovetail grooves with 66 ° undercut angles. Use the same groove dimensions as the standard o-ring groove discussed previously. Anyone know where I can get the standard dimensions for the grooves on these receivers? I've measured them on what I have (Marlin bolt and semi-autos) and there seems to be some significant variation. Can I just buy any novak sight and have it be the proper fit? this sketch is the dimensions of my slide dovetail cut. 070 0. In this case, the groove is cut into the surface of the board and the tongue is milled on the edge. 330" wide, . and O. A dovetail joint or simply dovetail is a joinery technique most commonly used in woodworking joinery (carpentry), including furniture, cabinets, [1] log buildings, and traditional timber framing. 000 for all sizes - . male gland A B-1 C G Groove Dia. 1-30 143 All the information in this documentation has been compiled with the greatest of care. Dovetail grooves are used to hold the O-ring in-place on a face seal groove during during assembly and maintenance of equipment. So, if you’re fairly new to woodworking, or you need to brush up on your skills, here’s your chance to master. We're proud to offer the world's largest inventory of readily-available and highly customized sealing solutions. The dovetail groove construction is only recommended for O-rings with bigger cross sections, . Polyurethane O-Rings. O-Ring Cross-Section. These correspond to AS568 dimensions. 362. Square. And with just a few simple tips, you’ll be routing perfect joints in no time. 94 Pounds; Item model number. Product Dimensions ‏ : ‎ 10. Wood joints are typically. The American dovetail actually measures 12. The calculator takes all relevant parameters into account like: O-Ring squeeze. Choose whether you are working with existing hardware or designing new hardware. Wouldn't slide onto the oddball rail at all! Fit the rings onto the oddball rail and slide 'em off, just eyeballing it was about 2mm. Groove Width: R1: R2: Cross Section (mm) Groove Depth E+/-0,05: F2 +/-0,05 (width to round. 8√ Guide for Design Table 4-2 If Desired Dimension is Known for Select Closest Dimension in Column Read Horizontally in Column To Determine Dimension for Bore Dia. AS-568 is the Aerospace Standard (AS) as well as the SAE standard: BS 4518:. , at the hardware and O-ring tolerance stack-up) and the smallest possible O-ring in the largest possible groove. Rabbets, dadoes, and grooves are essential joints, used in most furniture and cabinet projects. Download PDF Datasheet. This Manual is intended for use with the Wood Design Package which includes the following documents: •. 055. 8 μm Ra) • Gland Dimensions Static Application-Face Seal Glands-Metric; W O-ring Cross Section E Gland Depth F Groove Width R. o-ring standard size (jis b 2401) measurements in measurements in jis b 2401 millimeters inches size id ± cs ± id ± cs ± g25 24. Home. Lastly, the fourth table is. Dovetail and Half-Dovetail Grooves. Dovetail and Half-Dovetail Grooves; Boss Seals; Failure Modes;. Note: do not remove the part from the mill between making the fly-cut and milling the groove. Dovetail Grooves are effective at retaining seals, however they come with a few challenges. Three highly requested features are brought together in the 8×12 Dovetail D-Log to create a widely desired building system. Whether you need bolted flanges or removable lids, this o-ring face seal groove design guide will help you choose the right o-ring for your application. For the slot you'll need a handheld router and the dado jig shown below. MSRP. 99 mm ± 0. This recommended practice provides the design criteria for static elastomeric O-ring seals used specifically in engine and engine control systems. Simultaneous O-Ring Groove Compliant Dovetail Grooving and R Chamfering, Powdered High-Speed Steel, TIALN Coating. Boss seal The groove dimensions are incorporated in the standard dimen-sions. Vises require a dovetail and locating slot to be cut into the bottom side of your material. Similar Sizes. 300”. Through Dovetail Wood Joints have 2 to 4 joints and full joint depths. 178 0. Clamping freedom that goes beyond the edge; The Match Fit Dovetail Clamps profile fits a 3/8" deep groove made using 1/2" diameter, 14° dovetail router bit. and in cross sections from . EPDM O-Rings. Boss seal The groove dimensions are incorporated in the standard dimensions. » FilterSeals® Innovative FilterSeals® are custom designed as a combination elastomer and fabric device that operates as both a seal and a filter. The MATCHFIT System was designed around a. Route dovetail grooves on a jig or work surface ; Use Dovetail Hardware to make stops and hold-downs that move freely, and tighten down anywhere you can route a groove. (On our ring height charts, the height is for the front ring. Create dovetail grooves that allow O-rings to flex without falling out of place. Exert versatile clamping pressure without interfering with the operation by containing the MATCHFIT Dovetail Clamp head arm within the dovetail groove. Rounded-Edge Square. . This allows even complex parts to be completed in a single operation. Our Carbide O-Ring Dovetail Cutters meet Parker Hannifin standards. May 24, 2020. Our custom KLICK Dovetail Router Bit is specifically designed to route the groove for the KLICK and sKLICK. Typically, the completed tail piece then serves as a template for marking and cutting the pins in the pin piece. Lay out the tails with a marking knife. Groove Bore Piston Rod Figure 1-2: Basic Gland Introduction Figure 1-3: Gland and O-ring Seal. . 0634 ; 65°/. 375", not . Hawke’s 30mm, 9-11mm Dovetail rings come in two sizes; medium and high. Press-In-Place Seals. A schematic diagram of a dovetail, trapezoidal groove containing an O-ring is shown in Figure 1. Parker Hannifin2360 Palumbo DriveLexington, KY 40509Ph: 859-269-2351Fax: 859-335-5128 oesmailbox@parker. Groove widths . 5mm wide at the deepest part of the groove. Undersized Cutter Design Allows Climb Milling Both Faces of Groove for Improved Finish. 3/8" = . Metric o-ring groove dimensions are listed for the most common metric cross-sections with and without backup rings. Utilizing left/OD and right/ID insert pair to generate groove form, inserts are available in . Solid Carbide Dovetail Cutters 1/16 3/32 1/8 3/16 1/4 3/8 , O-Ring Grooves . You can find out about my adventures with different sights on the 10/22 here. CNC ground from solid carbide in the USA, this 3 flute tool is fully stocked in uncoated, AlTiN coated, and TiB2 coated styles. Groove dimensions are to be seen as an advice due to the fact they are based on our experience. O-RING GLAND TYPES AND NOMENCLATURE Most static O-ring seals can be classified into one of the three arrangements shown below. Dynamic applications: stretch a piston seal by up to 5% and compress a rod seal by up to 3%. complete dovetail groove. Ultra Quick-Shield. Fortunately, you can crank box joints out all day using a table saw and a simple jig. The most important variable for installing an O-ring into a dovetail gland is. The mounts can be designed to be interchangeable between dovetail types, but may not always be the case. Five degree A tongue and groove joint involves two complementary pieces: one with a protruding tongue and the other with a receptive groove. Chemraz® O-Rings FFKM. . Noted for its resistance to being pulled apart, also known as tensile strength, the dovetail joint is commonly used to join the sides of a drawer to. 014″. Toolpath 2. These stock cutters conform to the standards suggested by the Seal Division of Parker Hannifin Corp. Then, calculate the O-Ring groove diameter as follows: a. S. To retain them, you need to dovetail the groove (make it a trapezoid shape). Undercut very slightly to allow the shoulders to pull up nicely. This self-aligning feature makes the joint particularly effective for creating wide panels. For exact details,. 3. Radius-tipped dovetail cutter ends are straight flutes with ground radius on the very tip. 1-30). Length 595 mm. For technical drawings and 3-D models, click on a part number. 003. 5M-1994)dimensioning method (again, linear, not. 3/8" dovetail grooves work best with very small and light scopes, which more easily follow the gun back under recoil. 050 to. d Optional construction for shapes and long straights. Going to go into the right side of the jig, inside out. A side note on angles: In joinery, it is common to measure angles (other than square and 45 degrees), not in degrees, but as the ratio between the side and hypotenuse of a right triangle. The dovetail’s profile includes a small neck diameter behind a larger end-cutting diameter. By the sound of it you have a 3/8" Dovetail. Unlike a line marked by even a sharp pencil, a line marked by a knife is exact. 070”, . Made of solid carbide, they are harder, stronger, and more wear resistant than high-speed steel and cobalt steel for the longest life and best finish on hard material. Item Dimensions: Weight: 1: Buy on Amazon. Softwoods are traditionally 1:6 and hardwoods 1:8. 050 to. This groove design is relatively uncommon as it is expensive to machine and should not be used unless absolutely required. 3/8" dovetail rails are a common, standardized style within the rimfire industry and are inexpensive to machine into the firearm's frame. Any deeper and you will weaken the gable too much. Surface Finish Static Grooves Straight-sided grooves are best to prevent extrusion or nibbling. The dovetail groove construction is only recommended for O-rings with cross sections of . 300 in. Create dovetail grooves that allow O-rings to flex without falling out of place. 54 x 20. Flash for standard sizes is 0. long, and bases to 96 in. Create dovetail grooves that allow O-rings to flex without falling out of place. 139 . 9-2 Parker Hannifi n Corporation • O-Ring Division 2360 Palumbo Drive, Lexington, KY 40509 Phone: (859) 269-2351 † Fax: (859) 335-5128 Sizes Parker O-Ring Handbook SizesThe KLICK is one of our concealed woodworking fasteners used to snap-in components with small dimensions, such as trims and moldings. On round top receiver narrow half lacks support below and rotates inward when tightened reducing. Surface Studio vs iMac – Which Should You Pick? 5 Ways to Connect Wireless Headphones to TV. 5 mm, 16. O-Ring Gland Types and Nomenclature Most static O-ring seals can be classified into one of the three arrangements shown below. Do this by taking a chisel and placing it at one end of the base, along the groove, and sliding the guide up to it, then doing the same thing at the opposite end. Whether you are a first-time dovetailer or an experienced woodworker who doesn’t cut dovetails often, these little tools come in. 055. This section calculates the equivalent circular groove dimensions, for use in the Seal Design Section, for a racetrack groove. Synopsis: Dovetail saw guides keep your handsaw at a fixed angle for cutting the tails and pins, while simultaneously holding it square to the face and end. c Sharp edge or burr not allowed; break corner 0,15 max. Cross Section W Groove Depth EDovetail Cutters. from the outside face of the 3⁄4-in. These joints’ dimensions were based on studies run by (Horwood 1999; Haviarova et al. The ASME B16. 5 inches : Thread Size ‎#10-32 : Metal Type. Please consult the factory or your local Parker Distributor for the availability of special sizes not included in this list as of this writing. Surface Finish X groove top and bottom : for liquids X = 32 micro inches (0. 75 Inch Fixtures Dovetail Fixtures. Cross Sectional Dimensions AS568A Series O-Ring Cross Section Gland Width Squeeze Gland Depth Gland Corner Radii Actual Tol +/- (G) % (L) (R) (R1) -004 To -050 0. There were 20 samples of 360 L × 50 W × 24 H mm; dovetail, tongue and groove, halving, and dowel joints for each test. Popular Sealing Material Families. We chose a 7° dovetail bit because it. 005-. For standard O-ring grooves in the face and radial applications, we recommend 60-90% gland fill. This can be easily achieved by taking a fly-cut on the surface prior to milling the groove. 6. 090, . 89 USD Availability: In StockRacetrack Groove Calculation. The I. 005-. 002 Try to keep the depth of the dovetail groove between 1/3 and 1/2 the thickness of the part. It’s hard to think of a woodworking joint you can cut faster than a half-blind dovetail — both. ) Leupold 1" Rings Ruger 77. No. 11 17. You might want to, look up, the Gun Smith that makes, the Lil' Crow Gunworks, GRX, "recoil Lug" for Rugers on, youTube and give him a call. 00. 8M high quality products and 80 sextillion configurable parts available with fast shipping and low. Gland Size Calculator. Despite this we can bear no responsibility. The first toolpath is made for taking off material with a 1/4 bit (I chose to use a down-cut bit for a cleaner result). He would probably know, the Angle and Slot size on, the barrels. 00. 345" wide or 65 degrees. A micron is. Direction (optional) Select a plane, a planar face, or a straight edge to define the direction of the lip and groove. Learn More. About 25% void space or 75% nominal fill. A "Dovetail" is a shape. a Pitch diameter. f Groove style A – Groove providing improved retention of O-ring – Option 1. They also have different groove angles as shown below. (In the example shown in Figure 2, this factor produces a core diameter of just 0. dimensions and tolerances. For dovetail grooves, match the centerline of the groove with the centerline of the O-Ring. of Flutes Price AlTiN; HDG1/16. Dovetail Insert Styles. For exact details, refer to manufacturer catalogs . point of the dovetail. 003. d w Quad-Ring®/X-Ring dimensions Note: (**) In case of exceptional bending of the rod or shaft, the diameter of the bottom of the groove can be adjusted both in case of vacuum and high pressure. 5, 16, 16. The variable names Piston-Type Seal Face-Type Seal Rod-Type. They work well with machines and. The dovetail groove construction is only recommended for O-rings with bigger cross sections, . Rifles are designed with different dovetail widths. Noted for its resistance to being pulled apart, also known as tensile strength, the dovetail joint is commonly used to join the sides of a drawer to. For designing systems which contain internal pressure, like the example below, the groove's outside diameter (OD) is primary, and the groove's width then determines the inside diameter. 005. Their extreme hardness means they are brittle, so a highly rigid setup, such as a CNC machine, is necessary to prevent. Parker Hannifin O-Ring & Engineered Seals 2360 Palumbo Drive Lexington, KY 40509 Ph: 859-269-2351Installers can drill, tap, or machine the sets to accommodate specific mounting requirements. All are made with premium carbide to optimize strength and durability, giving you the longest life and best finish on hard metals. Commonly used materials are solid Inconel 718 and cladded Inconel 625, which are difficult to machine and add to the challenges. Do not need a base as they attach directly into grooves in the receiver. Lip body. Dovetail Dado Wood Joints have joint widths of 2/3 and. O ring groove dimensions drawing. V-Grooves / Chamfers (Customized Straight Blades) V-Grooves / Chamfers (Customized Straight Blades). However, that is not the only difference between the two dovetails. If you want to know more about o-ring groove dimensions and its functions, visit Allied Metrics.