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Home
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Power Tool Accessories
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Drill Bits
Drill Bits
59 Results
Bit Material: Cobalt
Material Application: Cast Iron
Drill Bit Type: Twist
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Power Tool Accessories
Drill Bits
Twist Drill Bits
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Brand
Drill America
Milwaukee
CLE-LINE
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$0 - $10
$10 - $20
$20 - $30
$30 - $40
$40 - $50
$50 - $100
$100 - $150
$150 - $200
$200 - $250
Special Values
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Bit Diameter
1/8 in
1/2 in
1/4 in
5/16 in
#23
#27
#37
#47
3/16 in
3/8 in
11/64 in
19/64 in
H
#13
#14
#18
#22
#24
#38
#39
#46
5/32 in
7/64 in
9/64 in
13/32 in
25/64 in
35/64 in
B
D
G
J
N
O
X
Y
#12
#15
#16
#25
#31
#3
#41
#48
#49
#4
#51
#52
#53
#56
#57
#59
#5
#61
#63
#77
#79
#80
#8
3/32 in
5/64 in
7/32 in
9/32 in
13/64 in
15/64 in
21/64 in
37/64 in
A
C
L
M
Q
S
T
U
V
W
Z
#11
#17
#19
#20
#21
#26
#28
#2
#33
#34
#35
#36
#40
#42
#44
#45
#50
#55
#58
#60
#62
#64
#65
+ View All
Bit Length (in.)
0.75 in
0.875 in
1 in
1.125 in
1.25 in
1.375 in
1.5 in
1.625 in
1.6875 in
1.75 in
1.8125 in
1.875 in
1.8912 in
1.9375 in
2 in
2.00
2.01
2.0625 in
2.125 in
2.1875 in
2.25 in
2.375 in
2.4375 in
2.5 in
2.625 in
2.6875 in
2.75 in
2.8125 in
2.875 in
2.875
2.8762 in
2.9375 in
3 in
3.0625 in
3.125 in
3.125
3.25 in
3.31 in
3.3125 in
3.375 in
3.3884 in
3.5 in
3.5625 in
3.6875 in
3.75 in
3.75
3.875 in
3.88
4 in
4
4.125 in
4.25 in
4.375 in
4.5 in
4.50
4.5
4.652 in
4.75 in
4.875 in
4.8856 in
5 in
5
5.0038 in
5.12
5.125 in
5.2402 in
5.25 in
5.5 in
5.8706 in
5.9888 in
6 in
6
6.25 in
6.375 in
6.5 in
6.625 in
6.75 in
7 in
7.125 in
7.5 in
7.625 in
7.75 in
8 in
8.25 in
8.75 in
9 in
10 in
10.75 in
12 in
12
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Material Application
Stainless Steel
Cast Iron
Steel
Aluminum
Duct/Sheet Metal
Wood
Angle Iron
Copper
PVC
Nickel
Plaster
Vinyl Flooring
Linoleum
Ceramic Tile
Gypsum
Porcelain
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Bit Material
High Speed Steel
Cobalt
Carbide
Titanium
Black Oxide
Multiple
Alloy Steel
Cobalt and Carbon Steel
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Number of Pieces
1 Piece
5-10 Pieces
11-20 Pieces
21-30 Pieces
41-60 Pieces
Shank Style
Straight
3-Flat
Hex
Shank Diameter
3/8 in
#23
#27
#37
#47
5/16 in
11/64 in
19/64 in
H
#13
#14
#18
#22
#24
#38
#39
#46
1/8 in
3/8 in.
25/64 in
B
D
G
J
N
O
X
Y
#12
#15
#16
#25
#31
#3
#41
#48
#49
#4
#51
#52
#53
#56
#57
#59
#5
#61
#63
#77
#79
#80
#8
1/2 in
1/4 in
3/16 in
5/32 in
5/64 in
7/32 in
7/64 in
9/32 in
9/64 in
13/32 in
13/64 in
15/64 in
21/64 in
35/64 in
37/64 in
A
C
L
M
Q
S
T
U
V
W
Z
#11
#17
#19
#20
#21
#26
#28
#2
#33
#34
#35
#36
#40
#42
#44
#45
#50
#55
#58
#60
#62
#64
#65
+ View All
Individual/Set
Individual
Set
Drilling Depth (in)
0.125
0.1875
0.25
0.3125
0.375
0.5
0.5625
0.625
0.6875
0.75
0.8125
0.86614173
0.875
0.9375
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
1.81
1.8125
1.875
1.9375
2
2.125
2.1875
2.20472441
2.25
2.3125
2.375
2.5
2.5625
2.625
2.75
2.8125
2.875
2.9375
3
3.0625
3.1875
3.3125
3.4375
3.5
3.50393701
3.62204724
3.625
3.75
3.85826772
3.875
4
4.0625
4.125
4.25
4.37007874
4.375
4.48818898
4.5
4.75
4.8125
4.875
5.1875
5.375
5.625
6.125
+ View All
Savings Center
Special Buys
Top Rated
More Options Available
$
29
.
97
$39.97
Save
$10.00
(25%)
(3405)
Cobalt Red Helix Drill Bit Set for Drill Drivers (15-Piece)
Add to Cart
Compare
More Options Available
$
25
.
47
(3899)
Milwaukee
1/2 in. Cobalt Red Helix Twist Drill Bit
Add to Cart
Compare
More Options Available
$
15
.
47
(3898)
Milwaukee
3/8 in. Cobalt Red Helix Twist Drill Bit
Add to Cart
Compare
More Options Available
$
7
.
47
(3898)
Milwaukee
1/4 in. Cobalt Red Helix Twist Drill Bit
Add to Cart
Compare
More Options Available
$
6
.
47
(3897)
Milwaukee
3/16 in. Cobalt Red Helix Twist Drill Bit
Add to Cart
Compare
Top Rated
More Options Available
$
10
.
47
(3898)
Milwaukee
5/16 in. Cobalt Red Helix Twist Drill Bit
Add to Cart
Compare
More Options Available
$
3
.
97
(3897)
Milwaukee
1/8 in. Cobalt Red Helix Twist Drill Bit
Add to Cart
Compare
More Options Available
$
21
.
97
(3890)
Milwaukee
7/16 in. Cobalt Red Helix Twist Drill Bit
Add to Cart
Compare
More Options Available
$
4
.
97
(3897)
Milwaukee
5/32 in. Cobalt Red Helix Twist Drill Bit
Add to Cart
Compare
More Options Available
$
6
.
67
(3897)
Milwaukee
7/32 in. Cobalt Red Helix Twist Drill Bit
Add to Cart
Compare
Top Rated
More Options Available
$
4
.
47
(3897)
Milwaukee
9/64 in. Red Helix Cobalt Drill Bit
Add to Cart
Compare
More Options Available
$
5
.
47
(3897)
Milwaukee
11/64 in. Cobalt Red Helix Drill Bit
Add to Cart
Compare