Page 251 - Carmex - Inch Catalog 2018-19 Rev. B

®
Mill - Thread Solid Carbide

UN With internal coolant bore

Tools for Internal Thread

Pitch UNC UNF UNEF Ordering Code d D No. of I L
TPI Flutes

32 8 10 12 MTB0250C02 32 UN 1/4 .126 3 .27 2.5
32 5/16 MTB0250C05 32 UN 1/4 .250 3 .58 2.5
32 3/8 MTB0312D07 32 UN 5/16 .312 4 .74 2.5
28 1/4 MTB0250C04 28 UN 1/4 .197 3 .44 2.5
28 7/16-1/2 MTB0250C05 28 UN 1/4 .250 3 .56 2.5
24 5/16 MTB0312C05 24 UN 5/16 .260 3 .56 2.5
24 3/8 9/16-5/8 MTB0312D08 24 UN 5/16 .312 4 .81 2.5
20 1/4 MTB0250C04 20 UN 1/4 .185 3 .48 2.5
20 7/16 MTB0312C08 20 UN 5/16 .312 3 .83 2.5
20 1/2 MTB0375D08 20 UN 3/8 .375 4 .88 3.0
20 3/4-1 MTB0500E10 20 UN 1/2 .500 5 1.07 4.0
18 5/16 MTB0250C05 18 UN 1/4 .220 3 .58 2.5
1/8
18 9/16-5/8 1 -1 5/8 MTB0500D10 18 UN 1/2 .445 4 1.03 4.0
16 3/8 MTB0312C06 16 UN 5/16 .264 3 .66 2.5
16 3/4 MTB0500D12 16 UN 1/2 .500 4 1.22 4.0
14 7/16 MTB0312C08 14 UN 5/16 .303 3 .82 2.5
14 7/8 MTB0625E14 14 UN 5/8 .625 5 1.46 4.0
13 1/2 MTB0375C08 13 UN 3/8 .362 3 .89 3.0
12 9/16 MTB0500C10 12 UN 1/2 .413 3 1.04 4.0
12 1-1 1/2 MTB0625E16 12 UN 5/8 .625 5 1.63 4.0
11 5/8 MTB0500C11 11 UN 1/2 .449 3 1.14 4.0
10 3/4 MTB0625D13 10 UN 5/8 .567 4 1.35 4.0
9 7/8 MTB0625C15 9 UN 5/8 .625 3 1.50 4.0
8 1 MTB0750D16 8 UN 3/4 .750 4 1.69 4.0
1/8
7 1 -1 1/4 MTB0750D17 7 UN 3/4 .750 4 1.78 4.0
Order example: MTB 0625E14 14 UN MT7

For thread mills with coolant through the flutes see next page
For small thread mills see pages 265-266, 271, 274 & 286.

5
245