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Home
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Twist Drill Bits
TWIST DRILL BITS
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Bit Diameter: 5/16 in
Material Application: Steel
Material Application: Cast Iron
Get It Fast
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
Drill America
Milwaukee
Price
to
Apply
$0 - $10
$10 - $20
$20 - $30
$50 - $100
$100 - $150
Bit Diameter
1/8 in
1/4 in
1/2 in
1/16 in
3/32 in
3/8 in
3/16 in
5/16 in
5/32 in
5/64 in
5/8 in
7/64 in
7/32 in
7/16 in
9/64 in
11/64 in
13/32 in
#25
9/32 in
11/32 in
15/32 in
17/64 in
19/64 in
21/64 in
25/64 in
#30
#31
#38
#40
#45
#53
#57
13/64 in
15/64 in
#32
#35
#44
29/64 in
31/64 in
37/64 in
Q
#10
#14
#15
#16
#18
#1
#20
#21
#33
#34
#37
#41
#46
#47
#49
#4
#51
#60
#8
1-1/4 in
1-1/8 in
1/32 in
1/64 in
3/4 in
3/64 in
7/8 in
9/16 in
11/16 in
13/16 in
17/32 in
19/32 in
21/32 in
23/32 in
23/64 in
35/64 in
63/64 in
#11
#17
#23
#24
#29
#36
#39
#43
#48
#50
#52
#55
#58
#59
#5
#7
#9
27/64 in
33/64 in
D
H
J
O
Material Application
Stainless Steel
Aluminum
Cast Iron
Duct/Sheet Metal
Steel
Angle Iron
Copper
Nickel
PVC
Wood
Plaster
Vinyl Flooring
Linoleum
Number of Pieces
1 Piece
5-10 Pieces
11-20 Pieces
Bit Material
Cobalt
High Speed Steel
Titanium
Bit Length (in.)
2.81 in
4.37 in
4.5 in
6 in
6.37 in
8 in
12 in
Features
No Additional Features
Shank Style
Straight
3-Flat
Hex
Round
Shank Diameter
1/4 in
3/8 in
5/16 in
Drilling Depth (in)
1.625
2.609375
2.8125
3.1875
4
6
Featured Keywords
extra length
black oxide
round shank
black oxide drill bit
high speed steel
longer life
variable helix
5x life
bits core
cobalt alloy
fast drilling
fractional size
general purpose
hard metal
hex shank
impact driver
jobber length
length drill bit
long life
nickel alloy
precision start
quad edge tip
rapid chip removal
red helix
shockwave impact duty bits
split point
stay sharper longer
straight shank
taper length drill
tapered drill bit
titanium coating
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Bit Diameter
Material Application
Number of Pieces
Bit Material
Bit Length (in.)
Bit Diameter: 5/16 in
Material Application: Steel
Material Application: Cast Iron
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14 Results
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Top Sellers
More Options Available
$
13
.
97
(4112)
Model# 48-89-2317
Milwaukee
5/16 in. Cobalt Red Helix Twist Drill Bit
Add to Cart
More Options Available
$
11
.
97
(4167)
Model# 48-89-4617
Milwaukee
SHOCKWAVE 5/16 in. Titanium Twist Drill Bit
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
Top Rated
More Options Available
$
109
.
00
(
$10.90
/unit)
(148)
Model# 48-89-4617-X10
Milwaukee
SHOCKWAVE 5/16 in. Titanium Twist Drill Bit (10-Pack)
Add to Cart
More Options Available
$
9
.
10
(48)
Model# DWDDL8X5/16
Drill America
5/16 in. x 8 in. High Speed Steel Extra-Long Drill Bit
Add to Cart
Top Rated
More Options Available
$
54
.
60
(
$10.92
/unit)
(259)
Model# 48-89-4617-X5
Milwaukee
SHOCKWAVE 5/16 in. Titanium 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
More Options Available
$
51
.
97
(
$10.39
/unit)
(403)
Model# 48-89-2317-X5
Milwaukee
5/16 in. Cobalt Red Helix Twist Drill Bit (5-Pack)
Add to Cart
More Options Available
$
15
.
03
(50)
Model# GLBCOX125/16
Drill America
5/16 in. x 12 in. Cobalt Aircraft Extension Drill Bit
Add to Cart
More Options Available
$
5
.
49
(136)
Model# DWDA/CX65/16
Drill America
5/16 in. x 6 in. High Speed Steel Aircraft Extension Drill Bit
Add to Cart
More Options Available
$
7
.
18
(90)
Model# DWDA/CX125/16
Drill America
5/16 in. x 12 in. High Speed Steel Aircraft Extension Drill Bit
Add to Cart
More Options Available
$
23
.
24
Model# DWDTLCO5/16
Drill America
5/16 in. Cobalt Taper Length Twist Drill Bit
Add to Cart