Page 256 - Carmex - Inch Catalog 2018-19 Rev. B

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Mill - Thread Solid Carbide

NPT

Same Tool for Internal and External Thread

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

27 1/16 MT0250C03 27 NPT 1/4 .230 3 .39 2.5
27 1/8 MT0250C04 27 NPT 1/4 .250 3 .39 2.5
18 1/4-3/8 MT0312C06 18 NPT 5/16 .312 3 .58 2.5
14 1/2-3/4 MT0500D08 14 NPT 1/2 .500 4 .82 3.5
11.5 1-2 MT0625D11 11.5 NPT 5/8 .625 4 1.09 4.0
8 2 1/2 MT0750D16 8 NPT 3/4 .750 4 1.56 4.0
Order example: MT 0312C06 18 NPT MT7

NPT With internal coolant

Same Tool for Internal and External Thread

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

27 1/8 MTB0312C04 27 NPT 5/16 .299 3 .43 2.5
18 1/4-3/8 MTB0375D06 18 NPT 3/8 .375 4 .64 3.0
14 1/2-3/4 MTB0625D08 14 NPT 5/8 .610 4 .89 4.0
11.5 1-2 MTB0750D11 11.5 NPT 3/4 .750 4 1.17 4.0
8 2 1/2 MTB0750D15 8 NPT 3/4 .750 4 1.56 4.0
Order example: MTB 0312C04 27 NPT MT7

For thread mills with coolant through the flutes see next page
For conical preparation end mills see page 253

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