Screw Machine - Heavy Duty

Triumph Screw Machine Drill Bits are made from high speed steel to perform even under high temperature and pressure. Finished in black oxide to resist corrosion. Heavy-duty construction to prolong the life and durability of your tool. 135 degree split point helps resist walking and damaging the surface of your project.

		Point:	135° Split Point
		Material:	High Speed Steel
		Coating/Finish:	Black Oxide
		Other:	Heavy-Duty Construction

Fractional Screw Machine Twist Drills

Size	Decimal Equivalent	Flute Length	Overall Length	Pkg Qty	Part #
3/64	0.0469	1/2	1-3/8	12	044403
1/16	0.0625	5/8	1-5/8	12	044404
5/64	0.0781	11/16	1-11/16	12	044405
3/32	0.0938	3/4	1-3/4	12	044406
7/64	0.1094	13/16	1-13/16	12	044407
1/8	0.125	7/8	1-7/8	12	044408
9/64	0.1406	15/16	1-15/16	12	044409
5/32	0.1562	1	2-1/16	12	044410
11/64	0.1719	1-1/16	2-1/8	12	044411
3/16	0.1875	1-1/8	2-3/16	12	044412
13/64	0.2031	1-3/16	2-1/4	12	044413
7/32	0.2188	1-1/4	2-3/8	12	044414
15/64	0.2344	1-5/16	2-7/16	12	044415
1/4	0.25	1-3/8	2-1/2	12	044416
17/64	0.2656	1-7/16	2-5/8	12	044417
9/32	0.2812	1-1/2	2-11/16	12	044418
19/64	0.2969	1-9/16	2-3/4	12	044419
5/16	0.3125	1-5/8	2-13/16	6	044420
21/64	0.3281	1-11/16	2-15/16	6	044421
11/32	0.3438	1-11/16	3	6	044422
23/64	0.3594	1-3/4	3-1/16	6	044423
3/8	0.375	1-13/16	3-1/8	6	044424
25/64	0.3906	1-7/8	3-1/4	6	044425
13/32	0.4062	1-15/16	3-5/16	6	044426
27/64	0.4219	2	3-3/8	6	044427
7/16	0.4375	2-1/16	3-7/16	6	044428
29/64	0.4531	2-1/8	3-9/16	6	044429
15/32	0.4688	2-1/8	3-5/8	6	044430
31/64	0.4844	2-3/16	3-11/16	6	044431
1/2	0.5	2-1/4	3-3/4	6	044432

Wire Size Screw Machine Twist Drills

Size	Decimal Equivalent	Flute Length	Overall Length	Pkg Qty	Part #
60	0.04	1/2	1-3/8	12	044560
59	0.041	1/2	1-3/8	12	044559
58	0.042	1/2	1-3/8	12	044558
57	0.043	1/2	1-3/8	12	044557
56	0.0465	1/2	1-3/8	12	044556
55	0.052	5/8	1-5/8	12	044555
54	0.055	5/8	1-5/8	12	044554
53	0.0595	5/8	1-5/8	12	044553
52	0.0635	11/16	1-11/16	12	044552
51	0.067	11/16	1-11/16	12	044551
50	0.07	11/16	1-11/16	12	044550
49	0.073	11/16	1-11/16	12	044549
48	0.076	11/16	1-11/16	12	044548
47	0.0785	11/16	1-11/16	12	044547
46	0.081	3/4	1-3/4	12	044546
45	0.082	3/4	1-3/4	12	044545
44	0.086	3/4	1-3/4	12	044544
43	0.089	3/4	1-3/4	12	044543
42	0.0935	3/4	1-3/4	12	044542
41	0.096	13/16	1-13/16	12	044541
40	0.098	13/16	1-13/16	12	044540
39	0.0995	13/16	1-13/16	12	044539
38	0.1015	13/16	1-13/16	12	044538
37	0.104	13/16	1-13/16	12	044537
36	0.1065	13/16	1-13/16	12	044536
35	0.11	7/8	1-7/8	12	044535
34	0.111	7/8	1-7/8	12	044534
33	0.113	7/8	1-7/8	12	044533
32	0.116	7/8	1-7/8	12	044532
31	0.12	7/8	1-7/8	12	044531
30	0.1285	15/16	1-15/16	12	044530
29	0.136	15/16	1-15/16	12	044529
28	0.1405	15/16	1-15/16	12	044528
27	0.144	1	2-1/16	12	044527
26	0.147	1	2-1/16	12	044526
25	0.1495	1	2-1/16	12	044525
24	0.152	1	2-1/16	12	044524
23	0.154	1	2-1/16	12	044523
22	0.157	1-1/16	2-1/8	12	044522
21	0.159	1-1/16	2-1/8	12	044521
20	0.161	1-1/16	2-1/8	12	044520
19	0.166	1-1/16	2-1/8	12	044519
18	0.1695	1-1/16	2-1/8	12	044518
17	0.173	1-1/8	2-3/16	12	044517
16	0.177	1-1/8	2-3/16	12	044516
15	0.18	1-1/8	2-3/16	12	044515
14	0.182	1-1/8	2-3/16	12	044514
13	0.185	1-1/8	2-3/16	12	044513
12	0.189	1-3/16	2-1/4	12	044512
11	0.191	1-3/16	2-1/4	12	044511
10	0.1935	1-3/16	2-1/4	12	044510
9	0.196	1-3/16	2-1/4	12	044509
8	0.199	1-3/16	2-1/4	12	044508
7	0.201	1-3/16	2-1/4	12	044507
6	0.204	1-1/4	2-3/8	12	044506
5	0.2055	1-1/4	2-3/8	12	044505
4	0.209	1-1/4	2-3/8	12	044504
3	0.213	1-1/4	2-3/8	12	044503
2	0.221	1-5/16	2-7/16	12	044502
1	0.228	1-5/16	2-7/16	12	044501