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Home
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Drill Bits
DRILL BITS
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Bit Material: Cobalt
Material Application: Cast Iron
Drilling Depth (in): 2.8125
Drilling Depth (in): 0.3125
Drilling Depth (in): 4.5
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In Stock at Store Today
Free 1-2 Day Delivery
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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
Milwaukee
Drill America
Price
to
Apply
$0 - $10
$10 - $20
$20 - $30
$100 - $150
$150 - $200
Bit Diameter
1/2 in
5/16 in
Bit Length (in.)
6 in
12 in
Bit Material
Cobalt
High Speed Steel
Titanium
Number of Pieces
1 Piece
5-10 Pieces
Material Application
Stainless Steel
Aluminum
Cast Iron
Duct/Sheet Metal
Steel
Angle Iron
Copper
Nickel
PVC
Plaster
Vinyl Flooring
Wood
Shank Style
3-Flat
Straight
Shank Diameter
3/8 in
5/16 in
Drilling Depth (in)
0.125
0.1875
0.375
0.5
0.5625
0.625
0.6875
0.75
0.8125
0.86614173
0.875
.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
1.81
1.8125
1.875
2
2.125
2.1875
2.25
2.3125
2.375
2.5
2.75
2.8125
2.875
2.9375
3.0625
3.1875
3.4375
3.625
3.75
3.875
4
4.0625
4.125
4.25
4.37007874
4.375
4.5
4.75
4.8125
5.1875
5.375
5.625
6.125
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Bit Diameter
Bit Length (in.)
Bit Material
Number of Pieces
Bit Material: Cobalt
Material Application: Cast Iron
Drilling Depth (in): 2.8125
Drilling Depth (in): 0.3125
Drilling Depth (in): 4.5
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5 Results
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Top Sellers
More Options Available
$
26
.
97
(4117)
Model# 48-89-2329
Milwaukee
1/2 in. Cobalt Red Helix Twist Drill Bit
Add to Cart
More Options Available
$
119
.
00
(
$23.80
/unit
)
(361)
Model# 48-89-2329-X5
Milwaukee
1/2 in. Cobalt Red Helix Twist Drill Bit (5-Pack)
Add to Cart
More Options Available
$
9
.
28
(129)
Model# GLBCOX65/16
Drill America
5/16 in. x 6 in. Cobalt Aircraft Extension Drill Bit
Add to Cart
Top Rated
More Options Available
$
198
.
00
(
$19.80
/unit
)
(250)
Model# 48-89-2329-X10
Milwaukee
1/2 in. Cobalt Red Helix Twist Drill Bit (10-Pack)
Add to Cart
More Options Available
$
15
.
03
(51)
Model# GLBCOX125/16
Drill America
5/16 in. x 12 in. Cobalt Aircraft Extension Drill Bit
Add to Cart