Metal Drilling
METAL DRILLING
148
Mechanics Length / Screw Machine Length Drill Bits
HSS Fractional
Screw Machine Length Drill Bits
(
Series 301)
Size
Decimal
Equiv.
Flute
Length
Overall
Length
Carded
Item #
Bulk
Item #
1/16"
.0625
5/8"
1-5/8"
30104
5/64"
.0781
11/16"
1-11/16"
30105
3/32"
.0938
3/4"
1-3/4"
30106
7/64"
.1094
13/16"
1-13/16"
30107
1/8"
.1250
7/8"
1-7/8"
30108
9/64"
.1406
15/16"
1-15/16"
30109
5/32"
.1562
1"
2-1/16"
30110
11/64"
.1719
1-1/16"
2-1/8"
30111
3/16"
.1875
1-1/8"
2-3/16"
30112
ZR
13/64"
.2031
1-3/16"
2-1/4"
30113
7/32"
.2188
1-1/4"
2-3/8"
30114
15/64"
.2344
1-5/16"
2-7/16"
30115
1/4"
.2500
1-3/8"
2-1/2"
30116
17/64"
.2656
1-7/16"
2-5/8"
30117
9/32"
.2813
1-1/2"
2-11/16"
30118
19/64"
.2969
1-9/16"
2-3/4"
30119
5/16"
.3125
1-5/8"
2-13/16"
30120
21/64"
.3281
1-11/16"
2-15/16"
30121
11/32"
.3438
1-11/16"
3"
30122
ZR
23/64"
.3594
1-3/4"
3-1/16"
30123
3/8"
.3750
1-13/16"
3-1/8"
30124
25/64"
.3906
1-7/8"
3-1/4"
30125
13/32"
.4063
1-15/16"
3-5/16"
30126
27/64"
.4219
2"
3-3/8"
30127
ZR
7/16"
.4375
2-1/16"
3-7/16"
30128
ZR
29/64"
.4531
2-1/8"
3-9/16"
30129
ZR
15/32"
.4689
2-1/8"
3-5/8"
30130
31/64"
.4844
2-3/16"
3-11/16"
30131
1/2"
.5000
2-1/4"
3-3/4"
30132
ZR
• 135
° split-point tip starts drilling immediately and
eliminates “walking.”
Engineered with premium high speed steel with black
oxide coating for corrosion resistance.
Shorter length for increased strength and rigidity
(
commonly known as “stubbies”).
Straight shank
Applications:
Industrial applications, maintenance and repair,
automotive, machine shop
30132
Left-Hand Cobalt HSS Fractional
Mechanics Length Drill Bits with
135
˚ Split Point (Series 305)
Size
Decimal
Equiv.
Flute
Length
Overall
Length
Carded
Item #
Bulk
Item #
5/64"
.0781
1"
2"
30505
ZR
7/64"
.1094
1"
2-3/16"
30507
1/8"
.1250
1-1/16"
2-1/4"
30508
5/32"
.1563
1-1/4"
2-9/16"
30510
3/16"
.1875
1-1/2"
2-7/8"
30512
ZR
7/32"
.2188
1-5/8"
3-1/8"
30514
1/4"
.2500
1-3/4"
3-5/16"
30516
9/32"
.2812
2"
3-9/16"
30518
ZR
19/64"
.2969
2-1/16"
3-5/8"
30519
5/16"
.3125
2-1/8"
3-3/4"
31520
11/32"
.3438
2-1/4"
3-15/16"
30522
3/8"
.3750
2-3/8"
4-1/8"
30524
13/32"
.4062
2-1/2"
4-3/8"
30526
ZR
7/16"
.4375
2-5/8"
4-9/16"
30528
15/32"
.4688
2-3/4"
4-3/4"
30530
1/2"
.5000
2-7/8"
5"
30532
• 8%
Cobalt alloyed for higher heat and abrasion resistance.
Shorter drill for additional strength.
Drill into fasteners without tightening them.
Can often remove broken fasteners without an extractor.
Sets:
5-
piece Set: 30520
30524
I...,138,139,140,141,142,143,144,145,146,147 149,150,151,152,153,154,155,156,157,158,...242