Page 258 - Carmex - Inch Catalog 2018-19 Rev. B

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Mill - Thread Solid Carbide

NPTF With internal coolant bore

Same Tool for Internal and External Thread

Pitch Standard Ordering Code d D No. of I L
TPI Flutes

27 1/8 MTB0312C04 27 NPTF 5/16 .299 3 .43 2.5
18 1/4-3/8 MTB0375D06 18 NPTF 3/8 .375 4 .64 3.0
14 1/2-3/4 MTB0625D08 14 NPTF 5/8 .610 4 .89 4.0
11.5 1-2 MTB0750D11 11.5 NPTF 3/4 .750 4 1.17 4.0
8 2 1/2 MTB0750D15 8 NPTF 3/4 .750 4 1.57 4.0
Order example: MTB 0312C04 27 NPTF MT7

NPTF With internal coolant through the flutes
Same Tool for Internal and External Thread - Metric Shank

Pitch d No. of
TPI Standard Ordering Code mm D Flutes I L

27 1/8 MTZ08076C10 27 NPTF 8 .299 3 .43 2.5
18 1/4-3/8 MTZ1010D16 18 NPTF 10 .394 4 .64 2.9
14 1/2-3/4 MTZ16155D22 14 NPTF 16 .610 4 .89 4.0
Order example: MTZ 1010D16 18 NPTF MT7

For conical preparation end mills see page 253

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