Page 322 - Carmex - Metric Catalog 2021

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Mill-Thread Solid Carbide

NPS With internal coolant bore

Same Tool for Internal and External Thread - Inch Shank

Grade P M K N S H
MT7      ≤ 47 HRc

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

27 1/8 MTB 0312 C04 27 NPS 5/16 7.6 3 10.8 63
18 1/4-3/8 MTB 0375 D06 18 NPS 3/8 9.5 4 16.2 76
14 1/2-3/4 MTB 0625 D08 14 NPS 5/8 15.5 4 22.7 101
11.5 1-2 MTB 0750 D11 11.5 NPS 3/4 19.0 4 29.8 101
Order example: MTB 0375 D06 18 NPS MT7

NPSF With internal coolant bore

Same Tool for Internal and External Thread - Inch Shank

Grade P M K N S H
MT7      ≤ 47 HRc

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

27 1/8 MTB 0312 C04 27 NPSF 5/16 7.6 3 10.8 63
18 1/4-3/8 MTB 0375 D06 18 NPSF 3/8 9.5 4 16.2 76
14 1/2-3/4 MTB 0625 D08 14 NPSF 5/8 15.5 4 22.7 101
11.5 1-2 MTB 0750 D11 11.5 NPSF 3/4 19.0 4 29.8 101
Order example: MTB 0312 C04 27 NPSF MT7

First choice Alternative
B08-24