Reference Guide

www.irwin.com
Metal Drilling
METAL DRILLING
144
Jobber Length Drill Bits
Black Oxide 1/4” Hex Shank Drill Bits
• 135° split-point tip starts drilling immediately and eliminates “walking.”
• Engineered with high speed steel with black oxide coating for corrosion
resistance.
• 1/4” hex shank works in all Lock-n-Load
®
quick-change extensions as
well as all drill chucks.
Applications:
Automotive, maintenance and repair, portable drills, stationary drill press
Sets:
5-piece Set: 4935642
12-piece Pro Set: 4935643
Size
Decimal
Equiv.
Flute
Length
Overall
Length
Carded
Item #
Bulk
Item #
1/16”
0.0625
3/4”
2-5/8”
4935632
—
5/64”
0.0781
1”
2-3/4”
4935633
—
3/32”
0.0938
1-5/16”
3”
4935634
—
7/64”
0.1094
1-1/2”
3-7/16”
4935635
—
1/8”
0.1250
1-5/8”
3-1/2”
4935636
—
9/64”
0.1406
1-7/8”
3-3/16”
4935637
—
5/32”
0.1563
2-1/16”
3-15/16”
4935638
—
3/16”
0.1875
2-3/8”
4-1/4”
4935639
—
7/32”
0.2188
2-5/8”
4-1/2”
4935640
—
1/4”
0.2500
2-7/8”
4-3/4”
4935641
—
Left-Hand Heavy-Duty HSS Fractional
Straight Shank Jobber Length Drill Bits
(Series 623)
• 135° split-point tip starts drilling immediately and
eliminates “walking.”
• Manufactured with premium high speed steel with black oxide coating
for corrosion resistance.
• Straight shank
Applications:
General metal drilling or creating pilot holes for screw extractors.
62324
Size
Flute
Length
Overall
Length
Carded
Item #
Bulk
Item #
1/16"
7/8"
1-7/8"
—
62304
5/64"
1"
2"
—
62305
3/32"
1-1/8"
2-1/4"
—
62306
7/64"
1-1/2"
2-5/8"
—
62307
1/8"
1-5/8"
2-3/4"
—
62308
9/64"
1-3/4"
2-7/8"
—
62309ZR
5/32"
2"
3-1/8"
—
62310
11/64"
2-1/8"
3-1/4"
—
62311
3/16"
2-5/16"
3-1/2"
—
62312
13/64"
2-7/16"
3-5/8"
—
62313
7/32"
2-1/2"
3-3/4"
—
62314
15/64"
2-5/8"
3-7/8"
—
62315
1/4"
2-3/4"
4"
—
62316
17/64"
2-7/8"
4-1/8"
—
62317
9/32"
2-15/16"
4-1/4"
—
62318
19/64"
3-1/16"
4-3/8"
—
62319
5/16"
3-3/16"
4-1/2"
—
62320
21/64"
3-5/16"
4-5/8"
—
62321
11/32"
3-7/16"
4-3/4"
—
62322
23/64"
3-1/2"
4-7/8"
—
62323
3/8"
3-5/8"
5"
—
62324
25/64"
3-3/4"
5-1/8"
—
62325
13/32"
3-7/8"
5-1/4"
—
62326
27/64"
3-15/16"
5-3/8"
—
62327
7/16"
4-1/16"
5-1/2"
—
62328
29/64"
4-3/16"
5-5/8"
—
62329
15/32"
4-5/16"
5-3/4"
—
62330
31/64"
4-3/8"
5-7/8"
—
62331
1/2"
4-1/2"
6"
—
62332
4935636
4935636