Bronco Tool Company
High Precision at Bargain Prices...wow!
 

Jobber Length Twist Drills
JOBBER LENGTH TWIST DRILLS WITH COATING
MATERIAL: HSS (M2 Grade)
Feature: 118 degrees point for quick penetration
Coating Advantage: Black Oxide Coating (Blued Finish) to aid wear resistance
Size (in.)
Dec. Equiv. (in.)
Flute L (in.)
OAL (in.)
1/16"
0.0625
7/8
1-7/8
5/64"
0.0781
1
2
3/32"
0.0938
1-1/4
2-1/4
7/64"
0.1094
1-1/2
2-5/8
1/8"
0.1250
1-5/8
2-3/4
9/64"
0.1406
1-3/4
2-7/8
5/32"
0.1562
2.00
3-1/8
11/64"
0.1719
2-1/8
3-1/4
3/16"
0.1875
2-5/16
3-1/2
13/64"
0.2031
2-7/16
3-5/8
7/32"
0.2188
2-1/2
3-3/4
15/64"
0.2344
2-5/8
3-7/8
1/4"
0.2500
2-3/4
4
17/64"
0.2656
2-7/8
4-1/8
9/32"
0.2812
2-15/16
4-1/4
19/64"
0.2969
3-1/16
4-3/8
5/16"
0.3125
3-3/16
4-1/2
21/64"
0.3281
3-5/16
4-5/8
11/32"
0.3438
3-7/16
4-3/4
23/64"
0.3594
3-1/2
4-7/8
3/8"
0.3750
3-5/8
5
25/64"
0.3906
3-3/4
5-1/8
13/32"
0.4062
3-7/8
5-1/4
27/64"
0.4219
3-15/16
5-3/8
7/16"
0.4375
4-1/16
5-1/2
29/64"
0.4531
4-3/16
5-5/8
15/32"
0.4688
4-5/16
5-3/4
31/64"
0.4844
4-3/8
5-7/8
1/2"
0.5000
4-1/2
6
9/16"
0.5625
4-13/16
6-5/8
5/8"
0.6250
5-3/16
7-1/8
3/4"
0.7500
7/8"
0.8750
1"
1

Bronco Tool Company
1550 Opelika Road, Suite 6-114
Auburn, AL 36830
334 737 6023 • Fax: 334 737 6102

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