Pneumatic Tapping Machine Chucks GT24 ISO/JIS M5‑M24 Overload Protection Tap Collets Item Type: Pneumatic Tapping Machine ChucksScrew Tap Size Form (note: D1 is for the Rod size,D2 is for the Square size) TAPS MODEL(Metric  screw tap) ISO Standard screw tap D1×D2 JIS standard taps D1×D2 TAPS MODEL(INCH) INCH Screw tap D1×D2 Pipe thread  Pipe Thread Taps D1×D2 DIN376 DIN371 DIN352 M2 2.8×2.25 3.0×2.5 2.5x2.1 2.8x2.1 M3 3.15×2.5 4.0×3.2 44204 4.0×3.15 3.5x2.7 3.5x2.7 3.5x2.7 M4 4.0×3.15 5.0×4.0 5/32 5.0×4.0 4.5x3.4 4.5x3.4 4.5x3.4 M5 5.0×4.0 5.5×4.5 44271 5.5×4.5 6.0x4.3 6.0x4.3 6.0x4.9 M6 6.3×5.0 6.0×4.5 44200 6.0×4.5 6.0x4.9 6.0x4.9 6.0x4.9 M8 6.3×5.0 6.2×5.0 44332 6.2×4.5 8.0x6.2 8.0x6.2 6.0x4.9 M10 8.0×6.3 7.0×5.5 44263 7.0×5.5 PT1/8 8.0×6.3 10.0x8.0 10.0x8.0 7.0x5.5 M12 9.0×7.1 8.5×6.5 44198 9.0×7.1 9.0x7.0 9.0x7.0 9.0x7.0 M14 11.2×9.0 10.5×8.5 44455 11.2×9.0 PT1/4 11.2×9.0 11.0x9.0 11.0x9.0 M16 12.5×10.0 12.5×10.0 44324 12.5×10.0 12.0x9.0 12.0x9.0 M18 14.0×11.2 14.0×11.0 44259 14.0×11.2 PT3/8 14.0×11.0 14.0x11.0 14.0x11.0 M20 14.0×11.2 15.0×12.0 16.0x12.0 16.0x12.0 M22 16.0×12.5 17.0×13.0 44385 16.0×12.5 18.0x14.5 18.0x14.5 M24 18.0×14.0 19.0×15.0 PT1/2 18.0×14.0 18.0x14.5 18.0x14.5 M27 20.0×16.0 20.0×15 20.0x16.0 M30 20.0×16.0 23.0×17.0 1/8inPT 8.0×6.3 PT3/4 23.0×17.0 22.0x18.0 M33 22.4×18.0 25.0×19.0 1/4inPT 11.2×9.0 M36 25.0×20.0 28.0×21.0 3/8inPT 14.0×11.0 M39 28.0×22.4 30.0×23.0 1/2inPT 18.0×14.0 M42 28.0×22.4 32.0×26.0 M45 31.5×25.0 35.0×26.0 PT1’3/8 35.0×26.0 M48 31.5×25.0 38.0×29.0 PT1’1/2 38.0×29.0 M52-56 35.5×28.0 PT1 26.0×21.0 PT1’1/4