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Home
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Drill Bits
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Twist Drill Bits
3-FLAT STEEL TWIST DRILL BITS
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Bit Diameter: 1-1/4 in
Bit Diameter: 5/16 in
Shank Style: 3-Flat
Material Application: Steel
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In Stock at Store Today
Same-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
$10 - $20
$20 - $30
$50 - $100
$100 - $150
Bit Diameter
1/2 in
1/4 in
1 in
1-1/16 in
1-1/4 in
1-1/8 in
1-13/64 in
1-19/64 in
1/16 in
1/32 in
1/8 in
3/8 in
3/16 in
3/32 in
3/4 in
5/16 in
5/32 in
5/8 in
5/64 in
7/16 in
7/64 in
7/8 in
9/16 in
9/64 in
11/16 in
11/32 in
13/16 in
13/32 in
15/32 in
17/32 in
17/64 in
19/32 in
21/32 in
23/64 in
25/64 in
25/32 in
27/32 in
27/64 in
29/32 in
29/64 in
31/64 in
33/64 in
37/64 in
47/64 in
59/64 in
63/64 in
Number of Pieces
1 Piece
5-10 Pieces
11-20 Pieces
Material Application
Stainless Steel
Aluminum
Cast Iron
Duct/Sheet Metal
Steel
Angle Iron
Copper
Nickel
PVC
Vinyl Flooring
Wood
Linoleum
Plaster
Bit Material
Cobalt
High Speed Steel
Bit Length (in.)
4.5 in
6 in
Shank Diameter
1/2 in
3/8 in
5/16 in
Features
No Additional Features
Drilling Depth (in)
3
3.1875
Featured Keywords
bits core
black oxide drill bit
cobalt alloy
fast drilling
hard metal
longer life
precision start
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Bit Diameter
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Bit Length (in.)
Bit Diameter: 1-1/4 in
Bit Diameter: 5/16 in
Shank Style: 3-Flat
Material Application: Steel
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Top Rated Products
More Options Available
$
13
.
97
(4075)
Model# 48-89-2317
Milwaukee
5/16 in. Cobalt Red Helix Twist Drill Bit
Add to Cart
More Options Available
$
27
.
66
(121)
Model# HD3F1-1/4
Drill America
1-1/4 in. Contractor Grade Drill Bit with 1/2 in. 3-Flat Shank
Add to Cart
More Options Available
$
23
.
21
(
$1.93
/unit
)
(84)
Model# HD3F5/16P12
Drill America
5/16 in. HSS Black and Gold Contractor Drill Bit with Split Point and 3-Flat Shank (12-Pack)
Add to Cart
More Options Available
$
51
.
97
(
$10.39
/unit
)
(399)
Model# 48-89-2317-X5
Milwaukee
5/16 in. Cobalt Red Helix Twist Drill Bit (5-Pack)
Add to Cart
More Options Available
$
129
.
00
(
$12.90
/unit
)
(291)
Model# 48-89-2317-X10
Milwaukee
5/16 in. Cobalt Red Helix Twist Drill Bit (10-Pack)
Add to Cart