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Home
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Power Tool Accessories
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Drill Bits
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Twist Drill Bits
STEEL TWIST DRILL BITS
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Material Application: Steel
Drilling Depth (in): 1.875
Drilling Depth (in): 0.25
Drilling Depth (in): 4.5
Bit Length (in.): 6 in
Get It Fast
In Stock at Store Today
Free 1-2 Day Delivery
Same-Day Delivery
Department
Tools
Power Tool Accessories
Drill Bits
Twist Drill Bits
Review Rating
5
4 & Up
3 & Up
2 & Up
1 & Up
Brand
Drill America
Milwaukee
Price
to
Apply
$0 - $10
$20 - $30
$30 - $40
$100 - $150
$150 - $200
Bit Diameter
1/2 in
11/64 in
#18
#20
#21
9/64 in
Material Application
Stainless Steel
Aluminum
Cast Iron
Duct/Sheet Metal
Steel
Angle Iron
Copper
Nickel
PVC
Vinyl Flooring
Wood
Plaster
Linoleum
Number of Pieces
1 Piece
5-10 Pieces
Bit Material
Cobalt
High Speed Steel
Bit Length (in.)
1 in
1.87 in
2.75 in
3 in
3.25 in
6 in
12 in
Features
No Additional Features
Shank Style
Straight
3-Flat
Shank Diameter
3/8 in
11/64 in
#18
#20
#21
1/2 in
9/64 in
Drilling Depth (in)
0.125
0.25
0.375
0.5
0.5625
0.625
0.75
0.875
1
1.0625
1.125
1.375
1.5
1.5625
1.6875
1.8125
1.875
2
2.25
2.375
2.5
2.8125
2.9375
3
3.1875
3.875
4
4.5
4.8125
5.1875
5.625
6
Individual/Set
Individual
Featured Keywords
black oxide
1/2 in. drill bit
bits core
black oxide drill bit
cobalt alloy
fast drilling
gold oxide
hard metal
longer life
precision start
quadedge tip
variable helix
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All Filters
Bit Diameter
Material Application
Number of Pieces
Bit Material
Bit Length (in.)
Material Application: Steel
Drilling Depth (in): 1.875
Drilling Depth (in): 0.25
Drilling Depth (in): 4.5
Bit Length (in.): 6 in
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8 Results
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Top Sellers
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$
26
.
97
(4113)
Milwaukee
1/2 in. Cobalt Red Helix Twist Drill Bit
Add to Cart
More Options Available
$
119
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00
(
$23.80
/unit)
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Milwaukee
1/2 in. Cobalt Red Helix Twist Drill Bit (5-Pack)
Add to Cart
More Options Available
$
31
.
01
(
$5.17
/unit)
(84)
Drill America
1/2 in. HSS Black and Gold Contractor Drill Bit with Split Point and 3-Flat Shank (6-Pack)
Add to Cart
More Options Available
$
1
.
73
(136)
Drill America
9/64 in. x 6 in. High Speed Steel Aircraft Extension Drill Bit
Add to Cart
More Options Available
$
3
.
13
(129)
Drill America
11/64 in. x 6 in. Cobalt Aircraft Extension Drill Bit
Add to Cart
More Options Available
$
198
.
00
(
$19.80
/unit)
(250)
Milwaukee
1/2 in. Cobalt Red Helix Twist Drill Bit (10-Pack)
Add to Cart
More Options Available
$
3
.
13
(16)
Drill America
#21 x 6 in. Cobalt Aircraft Extension Drill Bit
Add to Cart
More Options Available
$
2
.
41
(23)
Drill America
#20 x 6 in. High Speed Steel Aircraft Extension Drill Bit
Add to Cart