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SP E C I A L TA P S & DIE STHE WORLD’S FINEST CUTTING TOOLS SINCE 1875.

WELCOME TO BESLYBesly has been manufacturing cutting tools of superior quality in the U.S.A. since 1875.Providing quality and value for nearly 140 years, Besly’s depth of experience is evident.Always driven by customers’ changing needs, and with a spirit of innovation supportedby advanced design and manufacturing capabilities, it has produced renowned cuttingtools such as the Turboflute Drill, X-Press Tap, Turbo-Cut Tap, and “material exact”Pipe Taps. These tools have a tradition of superb performance and yield the lowestoperational cost in difficult applications. In addition to a complete line of standardtaps, drills, and reamers, Besly also manufactures custom tools to meet applicationrequirements. Whether made from hardened blanks or raw bar stock, Besly can design,build, and ship . Fast!!Now, we are excited to present our latest Special Taps & Die catalog. Many new itemshave been added to our offering to provide you with a complete domestic source forcustom thread tools. Some of those are: Special Extension Hand Taps made from blanks Special Pipe Tap Extension Taps made from blanks Special Acme Hand and Unipass made from blanks Special Hand Taps from blanks up to 6" in diameter Popular Special Taps and Dies “from stock” expandedYou will also find special pricing tables for X-Press Taps, Turbo-Cut Taps, Taper PipeTaps, and Straight Pipe Taps. If coatings are needed, Besly can provide those as well.And, more products are now included in our BLITZ fast delivery tap program. In manycases, BLITZ orders can be shipped within 24 hours!We sincerely hope you take a few minutes to review this catalog and become familiarwith the great products Besly has to offer. Additional copies are available upon request,or go to www.besly.com for a PDF version.Besly CuttingTools, Inc.Precisely Crafted in the U.S.A. Since 1875520 Blackhawk Blvd. #135 South Beloit, IL 61080 800-435-2965 sales@besly.comwww.besly.com

TABLE OF CONTENTSPageSpecial Taps Pricing TablesStraight Flute . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3Spiral Pointed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3X-Press Thread Forming Taps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4Turbo-Cut Spiral Flute Taps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5Over 1" Long Series 302 Blanks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6Over 1" Short Series 303 Blanks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7Taper and Straight Pipe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8Extension Pipe Taps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9Extension Taps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10Tandem & Extra Length Acme Taps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11Acme Hand Taps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12Popular Special Taps & Dies with part numbers up to 6" diameterImperial Taps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14-27Metric Taps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28-32Imperial Dies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33-36Metric Dies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37-38Technical DataTap Terminology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40Short Thread Length Tap Dimensions Table 302A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41Extension Tap Dimensions Table 303A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42Standard Tap Dimensions Table 302 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43Standard Tap Dimensions Table 302/303 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44Pipe Tap Dimensions Table 311 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45Taper Pipe Reamers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45Pitch Diameter Limit Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46Thread Form Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46Tap Recommendations & Thread Limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47Metric Tap Thread Limits Table 337 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48Metric Tap Limits Table 341 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49Tap Drill Sizes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50-51Tap Drill Sizes For Metrics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52-53Tap Drill Sizes For X-Press . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54Surface Treatment of Besly Taps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55Cutting Face Angles, Speeds & Lubricants . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56Quick Tap Selector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57520 Blackhawk Blvd. #135 South Beloit, IL 61080 800-435-2965 sales@besly.comwww.besly.com1

ORDERINGSPECIAL TAPSBesly Cutting Tools manufactures and stocks an extensive range of PopularSpecial Taps and Dies. They are identified in this catalog by EDP number beginningon page 14. If the description of the tap you need does not match any of these partnumbers, please refer to the index to locate a special pricing table for it.Criteria for selecting the proper tap1. Tap diameter and threads per inch2. Thread form: NC, NF, or NS3. Class of fit or “H” limit4. Style of Tap: straight flute, spiral point, spiral flute5. Number of flutes6. Chamfer style7. Drilled hole size8. Thru hole, blind hole, or blind hole with clearance at the bottom9. Material to be tappedWith the above information, Besly Cutting Tools can promptly and accurately meetyour popular or full special tap requirement. If you would like assistance in findingthe tool you need, please let us know by using the contact information shown atthe bottom of the page. A 10% over or under shipment tolerance applies to all“make” special cutting tools ordered.BLITZ FAST DELIVERY SPECIAL TAPSSpecial taps finished to your specifications FAST!2520 Blackhawk Blvd. #135 South Beloit, IL 61080 800-435-2965 sales@besly.comwww.besly.com

SPECIAL STRAIGHT FLUTE TAPSRight or Left HandMade to USCTI Table 302 Dimensions (page 43)Made from hardened High SpeedSteel blanks for quick delivery!Machine Screwand FractionalTPIMetricSizeMMM1.5, M1.6PitchMinPitchMM0.3Numberof FlutesSpiralHand PointTaps 65Size0MaxTPI800.078180M1.80.3220.091280M2, M2.20.32-3M2.3, M2.50.30.1043800.117480List Price Each in Quantities 950.1971080M4.5, 00.44-63130.45 7/864M220.44-63136.15 15/1664M240.44-63138.25 1"64M250.44-63150.90 120.80 108.5583.4072.4062.1556.8552.1547.956.05For diameters over 1" see page 6. For additional features such as interrupted threads, multiple leads, and surface treatments please contact our customer servicedepartment.520 Blackhawk Blvd. #135 South Beloit, IL 61080 800-435-2965 sales@besly.comwww.besly.com3

X-PRESS SPECIAL TAPSRight or Left HandMade to USCTI Table 302 Dimensions (page 43)Besly X-Press Taps cold form threads in ductile materialsuch as brass, copper, aluminum, and leaded steels.Since X-Press Taps have no cutting edges, thread size canbe maintained closely. Unusually smooth threads can beformed the full depth of the hole. Sizes from #8 machinescrews and larger have two lubrication grooves. Thesegrooves carry lubricant to the forming threads and preventseizing or galling in stringy materials.MachineScrew andFractionalMetricTPISize2SizeMMM2, M2.2MaxTPI80Numberof 04819.607217.603M2.3 - 2.7581.4055.7035.2020.9016.8513.1011.454List Price Each in Quantities 0M4.5, 2.4056.00X-Press Taps without lube grooves available at above prices.4520 Blackhawk Blvd. #135 South Beloit, IL 61080 800-435-2965 sales@besly.comwww.besly.com

TURBO-CUT SPECIAL SPIRAL FLUTE TAPS30 and 52 Turbo-Cut Spiral FluteBesly Turbo-Cut Taps have a revolutionary fast spiral flutedesign that does a one-pass job in deep, blind holes andmakes tapping cleaner and easier in thru holes. Turbo-CutTaps provide the utmost accuracy in ductile materials andmaintain an extremely high rate of production.Machine Screwand of FlutesSizeMMM2.3, M2.5PitchMinPitchMM0.330 252 2List Price Each in Quantities .850.1971080M4.5, 38.5033.8531.3529.3544136.95 54.00 123.10 100.1083.4072.4061.6056.9553.9049.9544172.45 140.35 117.05 41.0101"64Conventional 30 spiral flute available in Plug or Bottom chamfer. For Left Hand thread add 10%.52 Turbo-Cut available in Bottom and Semi-Bottom chamfer. Add 10% for Plug chamfer. For Left Hand contact customer service.Made to 302 Blank Dimensions shown on page 43.520 Blackhawk Blvd. #135 South Beloit, IL 61080 800-435-2965 sales@besly.comwww.besly.com5

SPECIAL TAPS OVER 1" DIAMETERLONG SERIESStraight FluteMade to USCTI Table 302 Dimensions (page 44)SizeInches1-1/166TPIMax zeMMM27PitchMin PitchMM2Numberof Flutes4,6List Price Each in Quantities 7.701,809.056"9102,430.502,138.801,895.85520 Blackhawk Blvd. #135 South Beloit, IL 61080 800-435-2965 sales@besly.comwww.besly.com

SPECIAL TAPS OVER 1" DIAMETERSHORT SERIESStraight FluteMade to USCTI Table 303 Dimensions (page 44) TextSize TextInches Text1-1/16TPIMax TPI561-1/8 7PitchMin PitchMM0.5Numberof Flutes6List Price Each in Quantities 51,331.40520 Blackhawk Blvd. #135 South Beloit, IL 61080 800-435-2965 sales@besly.comwww.besly.com7

SPECIAL PIPE TAPSStraight FluteMade to USCTI Table 311 DimensionsStandard Number of Flutes Tapered or Straight Threads Right Hand or Left Hand NPT, ANPT, NPTF, PTF, NPS, NPSI,NPSC, NPSG, NPSFTap Size ThreadsInches1/161/8Number of FlutesInt.Per Inch Standard s0.3120 "flush"0.3120 "flush"List Price Each in Quantities 8.15842.60821.60691.90627.00594.55Add 15% for interrupted threads. These prices apply when the projection tolerance is not less than .062" and the projection required is not less than the minimumshown. Furnished with large shanks unless otherwise specified. Blanks manufactued to Table 311 dimensions on page 45.8520 Blackhawk Blvd. #135 South Beloit, IL 61080 800-435-2965 sales@besly.comwww.besly.com

SPECIAL EXTENSION PIPE TAPSMade from Standard BlanksStandard Number of Flutes Tapered Threads Right Hand or Left Hand NPT, ANPT, NPTF, PTFTap SizeInches1/8ThreadsPer Inch27LengthInches4ProjectionMinimumFlush 0 24.40114.0599.5582.9568.4010228.15171.15136.85125.

520 135 61080 8004352965 .com 4 www.besly.com Right or Left Hand Made to USCTI Table 302 Dimensions (page 43)