Recommended for drilling in hard and high strength materials. Typical materials are heat-treated steel, alloys harder than RC-50, nickel-chrome steels, stainless bearing steels and high temperature alloys. 118 degrees including point.

Fractional	Decimal	Flute	OAL	Stock
Size	Equivalent	Length		No
1/32	0.0313	3/8	1 1/2	31400
1/64	0.0469	1/2	1 1/2	31401
1/16	0.0625	1/2	1 1/2	31264
5/64	0.0718	5/8	1 3/4	31402
3/32	0.0937	5/8	2	31265
7/64	0.1094	3/4	2 1/4	31403
1/8	0.1250	3/4	2 1/4	31266
9/64	0.1406	1	2 1/2	31404
5/32	0.1562	1	2 1/2	31267
11/64	0.1719	1 1/4	2 3/4	31405
3/16	0.1875	1 1/4	2 3/4	31628
13/64	0.2031	1 1/2	3	31406
7/32	0.2187	1 1/2	3	31407
15/64	0.2344	1 1/2	3	31408
1/4	0.2500	1 1/2	3	31269
17/64	0.2656	1 1/2	3 1/4	31409

Fractional	Decimal	Flute	OAL	Stock
Size	Equivalent	Length		No
9/32	0.2812	1 1/2	3 1/4	31410
19/64	0.2969	2	3 1/4	31411
5/16	0.3125	2	3 1/4	31270
21/64	0.3281	2	4	31412
11/32	0.3438	2	4	31413
23/64	0.3594	2	4	31414
3/8	0.3750	2	4	31271
25/64	0.3906	2	4	31415
13/32	0.0462	2	4	31416
27/64	0.4219	2	4	31417
7/16	0.4375	2	4	31418
1/2	0.5000	2 1/4	4	31419
9/16	0.5625	2 1/4	4	31420
5/8	0.6250	2 1/2	5	31421

Diameter tolerance + .0000-.0005
Drills are manufactured in any available drill size, letter fractional sizes. Special sizes quoted on request

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