Solid Threading Endmills for Internal Thread Solid Threading Endmills for Internal Thread W 55°WHIT WORTH (B .SW BSF,BSP, BSB) BSPT 55°BRITISH STANDARD PIPE ap ap P f t«—P D dh6 D dh6 ^15 *L ^15 *L R0.137P Screw •Application: General engineering •Application: General engineering fittings and pipe couplings fittings and pipe couplings Dimension (mm) Dimension (mm) Designation TPI BSP No.of flutes Designation TPI BSP No.of flutes d D ap L d D ap L SMT 0606C9 28 W 28 G1/8 6 6.0 9.5 58 3 SMT 0606C9 28 BSPT 28 RC1/8 6 6.0 9.5 58 3 0808C14 19 W 19 G1/4-3/8 8 8.0 14.0 64 3 0808C14 19 BSPT 19 RC1/4-3/8 8 8.0 14.0 64 3 1212D1914 W 14 G1/2-7/8 12 12.0 19.0 84 4 1212D19 14 BSPT 14 RC1/2-7/8 12 12.0 19.1 84 4 1212D2614 W 14 G1/2-7/8 12 12.0 26.3 84 4 1616D28 11 BSPT 11 RC1-2 16 16.0 28.9 105 4 1212C24 11 W 11 G1-1 1/2 12 12.0 24.2 84 3 1616D38 11 W 11 G1-3 16 16,0 38.1 105 4 2020E47 11 W 11 G>1 20 20.0 47.3 105 5 101 102 NPT60°NATIOANL PIPE ap P ^ MAA/W D dh6 ^15 *L f99 Taper 1:16 Screw •Application: General engineering Dimension (mm) Designation TPI BSP No.of flutes d D ap L SMT 0606C9 27 NPT 27 1/8 6 6.0 9.9 58 3 0808C14 18 NPT 18 1/4-3/8 8 8.0 14.8 64 3 1212D20 14 NPT 14 1/2-3/4 12 12.0 20.9 84 4 1616D27 11.5 NPT 11.5 1-2 16 16.0 27,6 105 4 2020D39 8 NPT 8 >2 1/2 20 20.0 39.7 105 4