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Home
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Drill Bits
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Twist Drill Bits
TWIST DRILL BITS
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Bit Material: Cobalt
Material Application: Copper
Get It Fast
In Stock at Store Today
Availability
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Department
Tools
Power Tool Accessories
Drill Bits
Twist Drill Bits
Review Rating
5
4 & Up
3 & Up
2 & Up
1 & Up
Brand
Drill America
CLE-LINE
Price
to
Apply
$0 - $10
$10 - $20
$20 - $30
$30 - $40
$40 - $50
$50 - $100
$100 - $150
$150 - $200
Bit Diameter
5/16 in
11/64 in
25/64 in
H
#14
#18
#23
#25
#31
#37
#38
#46
#47
#52
1/2 in
1/4 in
3/16 in
5/32 in
7/64 in
7/8 in
9/32 in
11/16 in
15/64 in
17/32 in
19/64 in
21/64 in
35/64 in
61/64 in
J
Q
#11
#13
#15
#16
#19
#20
#21
#24
#26
#27
#33
#36
#39
#3
#40
#44
#45
#48
#4
#50
#53
#55
#56
#57
#62
#69
#71
#72
#78
#8
#9
1-1/2 in
1-5/16 in
1/8 in
1.5 mm
3/32 in
3/4 in
3/8 in
3.5 mm
5/64 in
5/8 in
7/32 in
9/16 in
9/64 in
12 mm
13/32 in
13/64 in
15/32 in
17/64 in
19/32 in
21/32 in
23/64 in
29/32 in
37/64 in
43/64 in
47/64 in
53/64 in
57/64 in
D
G
L
M
N
O
U
X
Material Application
Stainless Steel
Angle Iron
Copper
Steel
Wood
Aluminum
PVC
Duct/Sheet Metal
Cast Iron
Nickel
Plaster
Vinyl Flooring
Linoleum
Ceramic Tile
Gypsum
Porcelain
Number of Pieces
1 Piece
5-10 Pieces
11-20 Pieces
21-30 Pieces
41-60 Pieces
Bit Material
High Speed Steel
Cobalt
Carbide
Black Oxide
Bit Length (in.)
0.87 in
1.12 in
1.25 in
1.37 in
1.5 in
1.62 in
1.68 in
1.75 in
1.81 in
1.87 in
1.89 in
2 in
2.06 in
2.12 in
2.25 in
2.43 in
2.5 in
2.62 in
2.68 in
2.75 in
2.81 in
2.87 in
2.93 in
3 in
3.12 in
3.25 in
3.37 in
3.5 in
3.75 in
4 in
4.12 in
4.37 in
4.75 in
5.12 in
5.87 in
6 in
6.25 in
6.37 in
6.5 in
6.62 in
6.75 in
7 in
7.12 in
7.5 in
7.62 in
7.75 in
8 in
9 in
10 in
12 in
Features
No Additional Features
Shank Style
Straight
Shank Diameter
1/2 in
5/16 in
11/64 in
25/64 in
H
#14
#18
#23
#25
#31
#37
#38
#46
#47
#52
1/4 in
3/16 in
3/8 in
5/32 in
7/64 in
9/32 in
15/64 in
19/64 in
21/64 in
J
Q
#11
#13
#15
#16
#19
#20
#21
#24
#26
#27
#33
#36
#39
#3
#40
#44
#45
#48
#4
#50
#53
#55
#56
#57
#62
#69
#71
#72
#78
#8
#9
1/8 in
1.5 mm
3/32 in
3.5 mm
5/64 in
7/32 in
7/8 in
9/64 in
11/16 in
12 mm
13/32 in
13/64 in
15/32 in
17/32 in
17/64 in
19/32 in
21/32 in
23/64 in
35/64 in
37/64 in
43/64 in
D
G
L
M
N
O
U
X
Drilling Depth (in)
0.125
0.1875
0.3125
0.375
0.5
0.5625
0.625
0.6875
0.75
0.8125
0.86614173
0.875
1
1.0625
1.125
1.1875
1.25
1.3125
1.375
1.4375
1.5
1.5625
1.625
1.6875
1.73228346
1.75
1.8125
1.875
2
2.125
2.1875
2.25
2.3125
2.375
2.5
2.5625
2.75
2.8125
2.875
2.9375
3
3.0625
3.4375
3.75
3.875
4
4.125
4.25
4.37007874
4.375
4.75
4.8125
5.1875
5.375
5.625
Individual/Set
Individual
Set
Featured Keywords
black oxide
high speed steel
gold oxide
extra length
drill chuck
jobber length
split point
1/2 in. shank
length drill bit
round shank
2 high speed steel
cobalt steel tool
nickel alloy
1/2. drill
42 cobalt drill bits
135 degree split point
cobalt drills
standard length
stub length
taper length drill
5 drill bits
6 in. cobalt aircraft extension drill bit
42 cobalt drills
135 split point
cobalt aircraft extension
cobalt steel
heavy-duty jobber length drill bit
letter size
right-hand cut
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Bit Diameter
Material Application
Number of Pieces
Bit Material
Bit Length (in.)
Bit Material: Cobalt
Material Application: Copper
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24 Results
Sort by:
Top Sellers
Top Sellers
Most Popular
Price Low to High
Price High to Low
Top Rated Products
$
136
.
57
Model# D/A26J-CO-SET
Drill America
m42 Cobalt Jobber Drill Bit Set (26-Pieces)
Add to Cart
More Options Available
$
3
.
13
(128)
Model# GLBCOX63/16
Drill America
3/16 in. x 6 in. Cobalt Aircraft Extension Drill Bit
Add to Cart
$
136
.
72
/set
(2)
Model# C21125
CLE-LINE
1802 Cobalt Heavy-Duty 135-degree Split Point #1 - #60 Bit Set (60-Piece)
Add to Cart
More Options Available
$
30
.
31
/inch
(50)
Model# D/ACO3/4
Drill America
3/4 in. M42 Cobalt Reduced Shank Drill Bit with 1/2 in. Shank
Add to Cart
$
16
.
68
(8)
Model# DWD13J-CO-SET
Drill America
m35 Cobalt Jobber Drill Bit Set (13-Pieces)
Add to Cart
More Options Available
$
26
.
41
(16)
Model# DWDCO7/8
Drill America
7/8 in. m35 Cobalt Reduced Shank Twist Drill Bit with 1/2 in. Shank
Add to Cart
More Options Available
$
24
.
50
(
$2.04
/unit)
(35)
Model# D/ACO1/4P12
Drill America
1/4 in. M42 Cobalt Drill Bit (12-Piece)
Add to Cart
More Options Available
$
9
.
01
(50)
Model# GLBCOX121/4
Drill America
1/4 in. x 12 in. Cobalt Aircraft Extension Drill Bit
Add to Cart
$
15
.
77
(
$1.31
/unit)
(26)
Model# DWDCO3/16P12
Drill America
3/16 in. M35 Cobalt Drill Bit (12-Piece)
Add to Cart
More Options Available
$
19
.
06
Model# DWDTLCO5/16
Drill America
5/16 in. Cobalt Taper Length Twist Drill Bit
Add to Cart
$
36
.
42
(5)
Model# D/ACO3/8X35/64
Drill America
35/64 in. M42 Cobalt Reduced Shank Twist Drill Bit with 3/8 in. Shank
Add to Cart
More Options Available
$
31
.
88
(
$2.66
/unit)
(3)
Model# D/ASTCO15/64P12
Drill America
15/64 in. M42 Cobalt Short Twist Drill Bit (12-Piece)
Add to Cart