HELICOOL HELICOOL METRIC 60° - INTERNAL 1.5 x D2 METRIC 60° - INTERNAL 2 x D2 FOR THREADS PITCH MM D2 L1 L D MIN BORE PART # VAR- M COARSE M FINE M3x0.5 M3.5 to M16x0.5 0.50 0.094 0.187 1.772 3/16 0.098 80337 M4x0.7 0.70 0.124 0.262 1.772 3/16 0.129 80355 M5x0.8 0.80 0.159 0.299 2.244 3/16 0.165 80356 M6x1.0 M8 to M40x1.0 1.00 0.189 374 2.244 1/4 0.197 80343 M8x1.25 1.25 0.256 0.524 2.402 5/16 0.268 80357 M10x1.5 M12 to M48x1.5 1.50 0.323 0.620 2.874 3/8 0.335 80346 M12x1.75 1.75 0.370 0.724 2.874 3/8 0.405 80358 M14x2.0 M17 to M80x2.0 2.00 0.457 0.827 2.874 1/2 0.472 80351 M16x2.0 M17 to M80x2.0 2.00 0.535 0.984 3.622 5/8 0.551 80353 FOR THREADS PITCH MM D2 L1 L D MIN BORE PART # VAR- M COARSE M FINE M3x0.5 M3.5 to M16x0.5 0.50 0.094 0.246 1.772 3/16 0.098 80336 M4x0.5 0.50 0.126 0.325 1.772 3/16 0.138 80338 M5x0.5 0.50 0.165 0.404 2.244 1/4 0.177 80339 M4x0.7 0.70 0.124 0.344 1.772 3/16 0.129 80284 M6x0.75 0.75 0.197 0.487 2.244 1/4 0.209 80340 M5x0.8 0.80 0.159 0.425 2.244 3/16 0.165 80341 M6x1.0 M8 to M40x1.0 1.00 0.189 0.492 2.244 1/4 0.197 80342 M8x1.0 1.00 0.264 0.650 2.402 5/16 0.276 80344 M10x1.0 1.00 0.343 0.807 2.874 3/8 0.354 80285 M12x1.0 1.00 0.421 0.965 2.874 1/2 0.433 80286 M8x1.25 1.25 0.256 0.664 2.402 5/16 0.268 80287 M10x1.25 1.25 0.335 0.812 2.874 3/8 0.346 80345 M10x1.5 M12 to M48x1.5 1.50 0.323 0.797 2.874 3/8 0.335 80288 M12x1.5 1.50 0.370 0.974 2.874 3/8 0.413 80347 M14x1.5 1.50 0.469 1.152 3.150 1/2 0.492 80348 M16x1.5 1.50 0.547 1.270 3.150 5/8 0.571 80349 M12x1.75 1.75 0.370 0.999 2.874 3/8 0.405 80350 M14x2.0 M17 to M80x2.0 2.00 0.457 1.142 3.150 1/2 0.472 80289 M16x2.0 M17 to M80x2.0 2.00 0.535 1.299 3.622 5/8 0.551 80352 M18x2.5 2.50 0.583 1.427 3.622 5/8 0.598 80354 M20x2.5 2.50 0.673 1.624 4.016 3/4 0.687 80290 M24x3.0 3.00 0.746 1.949 4.016 3/4 0.827 80359 BSPT External / Internal THREAD SIZE TPI D2 L1 L D MIN BORE PART # VAR- 1/16”-28 28 0.232 0.401 2402 1/4 0.264 80394 1/8”-28 28 0.301 0.401 2.402 5/16 0.342 80320 1/4”-19 19 0.400 0.605 2.874 1/2 0.464 80395 3/8”-19 19 0.439 0.605 2.874 1/2 0.598 80396 1/2”, 3/4”-14 14 0.561 0.893 3.150 5/8 0.748 80397 1”, 1.1/2”, 2”, 2.1/2”-11 11 0.746 1.136 4.016 3/4 1.209 80398 ANPT External / Internal *Bore Diameter applies to smallest thread dia. *Bore Diameter applies to smallest thread dia. BSP (G) External / Internal 1.5 x D2 SOLID CARBIDE THREAD MILLS WITH COOLANT THRU HOLE TiCN COATED (CONTINUED) (HCR) HELICAL FLUTES WITH RADIAL COOLING TiCN COATED NPT - External / Internal UN 60° - Internal HELICOOL-R HELICOOL-R FOR THREADS TPI D2 L1 L D MIN BORE PART # VAR- UNC UNF UNEF #10-32 #12 to 3/8”-32 32 0.150 0.391 1.772 3/16 0.157 80458 1/4”-28 7/16”, 1/2”-28 28 0.203 0.518 2.244 1/4 0.216 80459 #10-24 5/16”, 3/8”-24 9/16” to 11/16”-24 24 0.141 0.396 1.772 3/16 0.150 80460 #12-24 5/16”, 3/8”-24 9/16” to 11/16”-24 24 0.163 0.437 1.772 3/16 0.177 80461 5/16”, 3/8”-24 9/16” to 11/16”-24 24 0.263 0.646 2.402 5/16 0.272 80462 3/8”-24 9/16” to 11/16”-24 24 0.323 0.771 2.874 3/8 0.335 80463 1/4”-20 7/16”, 1/2”-20 3/4” to 1”-20 20 0.192 0.525 2.244 1/4 0.201 80464 1/2”-20 3/4” to 1”-20 20 0.437 1.025 3.150 1/2 0.453 80465 5/16”-18 9/16”, 5/8”-18 11/16” to 1.11/16”-18 18 0.242 0.639 2.402 5/16 0.260 80466 3/8”-16 3/4”-16 16 0.301 0.781 2.402 5/16 0.315 80467 7/16”-14 7/8”-14 14 0.354 0.893 2.874 3/8 0.370 80468 1/2”-13 13 0.407 1.039 3.150 1/2 0.430 80469 9/16”-12 1” to 1.1/2”-12 12 0.465 1.125 3.150 1/2 0.484 80470 THREAD SIZE TPI D2 L1 L D BORE DIA PART # VAR- 1/16”-27 27 0.232 0.389 2.244 1/4 0.244 80573 1/8”-27 27 0.301 0.389 2.402 5/16 0.330 80574 1/4”-18 18 0.370 0.583 2.874 3/8 0.437 80575 3/8”-18 18 0.439 0.583 2.874 1/2 0.562 80576 1/2”, 3/4”-14 14 0.561 0.750 3.150 5/8 0.704, 0.905 80577 1”, 1.1/4”, 1.1/2”, 2”-11.5 11.5 0.746 0.913 4.016 3/4 1.411, 1.484, 1.732, 2.204 80578 2.1/2”, 3”-8 8 0.746 1.313 4.016 3/4 2.625, 3.232 80579 SOLID CARBIDE THREAD MILLS SOLID CARBIDE THREAD MILLS FOR LONG THREADS UP TO 3xD TiCN COATED Internal ● Relief neck for reduced cutting forces ● Multi-tooth geometry ● Reduced machining times for long threads Helical Flutes with Relief Neck and Thru-Hole Coolant THREAD SIZE PITCH Dimensions Inch # FL Teeth Min. Bore Dia PART# VAR- UNC UNF UNEF TPI D D2 L Le L1 Z Zt Inch #10-32 #12-3/8"-32 32 3/16 0.150 2.008 0.314 0.570 3 10 0.157 81165 1/4"-28 7/16", 1/2"-28 28 1/4 0.203 2.480 0.394 0.750 3 11 0.216 81166 #10-24 5/16", 3/8"-24 9/16"-11/16"-24 24 3/16 0.141 2.008 0.333 0.570 3 8 0.150 81167 #12-24 5/16", 3/8"-24 9/16"-11/16"-24 24 3/16 0.163 2.008 0.378 0.648 3 9 0.177 81168 5/16", 3/8"-24 9/16"-11/16"-24 24 5/16 0.263 2.598 0.501 0.938 3 12 0.272 81169 3/8"-24 9/16"-11/16"-24 24 3/8 0.323 3.071 0.585 1.125 3 14 0.335 81170 1/4”-20 7/16", 1/2"-20 3/4"-1"-20 20 1/4 0.192 3.504 0.402 0.750 3 8 0.201 81171 1/2"-20 3/4"-1"-20 20 1/2 0.437 3.622 0.802 1.500 4 16 0.453 81172 5/16"-18 9/16", 5/8"-18 11/16"-1.11/16"-18 18 5/16 0.242 2.598 0.500 0.938 3 9 0.260 81173 3/8"-16 3/4"-16 16 5/16 0.301 2.756 0.626 1.125 3 10 0.315 81174 7/16"-14 7/8"-14 14 3/8 0.354 3.031 0.715 1.314 3 10 0.370 81175 1/2"-13 13 1/2 0.407 3.622 0.771 1.500 4 10 0.429 81176 9/16"-12 1”-1.1/2”-12 12 1/2 0.465 3.622 0.917 1.686 4 11 0.484 81177 - 1044 - Bass Tool & Supply, Inc. Houston Email Fax Toll Free www.basstool.com (713) 682-1889
[email protected] (713) 681-4931 800-442-0042 THREAD PITCH DIMENSIONS INCH NO. OF FLUTES TEETH MIN. BORE* PART # VAR- STANDARD TPI D D2 L Le Z Zt INCH 1/4”x18 18 3/8 0.370 2.874 0.583 3 10 0.437 81054 1/2”, 3/4”x14 14 5/8 0.561 3.150 0.750 4 10 0.704, 0.905 81055 NPS External / Internal THREAD PITCH DIMENSIONS INCH NO. OF FLUTES TEETH MIN. BORE* PART # VAR- STANDARD TPI D D2 L Le Z Zt INCH 1/8" 27 5/16 0.301 2.402 0.389 3 10 0.330 80116 1/4" 18 3/8 0.370 2.874 0.583 3 10 0.437 80117 3/8" 18 1/2 0.439 2.874 0.583 4 10 0.562 80118 1/2", 3/4" 14 5/8 0.561 3.150 0.750 4 10 0.704, 0.905 80119 1", 2" 11.5 3/4 0.746 4.016 0.913 4 10 1.411, 2.204 80120 THREAD PITCH DIMENSIONS INCH NO. OF FLUTES TEETH MIN. BORE* PART # VAR- STANDARD TPI D D2 L Le Z Zt INCH 1/16", 1/8"x28 28 5/16 0.252 2.402 0.480 3 13 0.264 80386 1/8"x28 28 3/8 0.323 2.874 0.591 3 16 0.324 80388 1/4", 3/8"x19 19 1/2 0.433 2.874 0.815 4 15 0.465 80389 3/8"x19 19 5/8 0.571 3.622 1.028 4 19 0.602 80391 1"-4"x11 11 3/4 0.746 4.016 1.681 4 18 1.208 80393 BSP (G) External / Internal 2 x D2 THREAD PITCH DIMENSIONS INCH NO. OF FLUTES TEETH MIN. BORE* PART # VAR- STANDARD TPI D D2 L Le Z Zt INCH 1/16", 1/8"x28 28 5/16 0.252 2.402 .625 3 17 0.264 80385 1/8"x28 28 3/8 0.323 2.874 .768 3 21 0.324 80387 1/4", 3/8"x19 19 1/2 0.433 3.150 1.079 4 20 0.465 80319 3/8"x19 19 5/8 0.571 3.622 1.342 4 25 0.602 80390 1/2"-7/8"x14 14 3/4 0.705 4.016 1.678 4 23 0.752 80392
Bass Tool Catalog 2025
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