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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
CAST IRON TWIST DRILL BITS
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Bit Diameter: 1/4 in
Bit Diameter: #1
Material Application: Cast Iron
Get It Fast
In Stock at Store Today
Free 1-2 Day Delivery
Same-Day Delivery
Availability
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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
$30 - $40
$40 - $50
$50 - $100
$100 - $150
Special Values
Bit Diameter
1/8 in
1/4 in
3/8 in
5/16 in
#15
#18
#27
#34
1/2 in
3/16 in
5/32 in
13/32 in
M
#12
#13
#24
#2
#38
#39
#49
11/64 in
15/32 in
19/64 in
A
B
D
Z
#14
#23
#37
#46
#47
#4
#59
#5
1/16 in
3/32 in
7/64 in
9/64 in
17/64 in
31/64 in
Y
#22
#25
#45
#48
#51
#52
#6
25/64 in
C
G
K
S
T
#16
#17
#1
#20
#31
#35
#44
#53
#57
#8
7/16 in
9/32 in
11/32 in
15/64 in
21/64 in
23/64 in
29/64 in
N
O
W
X
#26
#30
#32
#33
#3
#41
#55
#60
13/64 in
H
I
J
L
Q
#10
#19
#40
#56
#58
#9
5/64 in
27/64 in
35/64 in
37/64 in
Bit Material
High Speed Steel
Cobalt
Titanium
Carbide
Number of Pieces
1 Piece
5-10 Pieces
11-20 Pieces
Material Application
Stainless Steel
Cast Iron
Aluminum
Duct/Sheet Metal
Steel
Angle Iron
Copper
Nickel
PVC
Plaster
Wood
Vinyl Flooring
Linoleum
Bit Length (in.)
2.43 in
3 in
3.87 in
4 in
4.13 in
6 in
8 in
12 in
18 in
Shank Style
Straight
Hex
3-Flat
Round
Features
No Additional Features
Shank Diameter
1/4 in
#1
3/8 in
3/8 in.
Drilling Depth (in)
1.25
1.3125
1.375
1.75
2.0
2.46875
2.625
2.75
3.62
3.75
4
6
13
Featured Keywords
extra length
round shank
black oxide
general purpose drill
general purpose
gold drill
hard metal
straight shank
variable helix
1/4 in. hex shank
2 high speed steel
5x life
bit life
bits core
black oxide drill bit
bright finish
broken bolt
cobalt aircraft extension
cobalt alloy
cobalt steel tool
drill bit
drill press
fast drilling
fractional size
gold oxide
hex shank
high speed steel
impact drill
impact driver
jobber length
killer force drill
long life
longer life
nickel alloy
overall length
precision start
quad edge tip
quadedge tip
rapid chip removal
red helix
reverse drill
right-hand cut
shockwave impact duty bits
stay sharper longer
tapered drill bit
titanium coating
View Results
All Filters
Bit Diameter
Bit Material
Number of Pieces
Material Application
Bit Length (in.)
Bit Diameter: 1/4 in
Bit Diameter: #1
Material Application: Cast Iron
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24 Results
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Top Rated Products
More Options Available
$
7
.
47
(3954)
Milwaukee
1/4 in. Cobalt Red Helix Twist Drill Bit
Add to Cart
Compare
More Options Available
$
6
.
67
(4006)
Milwaukee
SHOCKWAVE 1/4 in. Titanium Twist Drill Bit
Add to Cart
Compare
Top Rated
More Options Available
$
27
.
97
(
$5.59
/unit
)
(319)
Milwaukee
SHOCKWAVE 1/4 in. Titanium Twist Drill Bit (5-Pack)
Add to Cart
Compare
More Options Available
$
15
.
25
(
$1.27
/unit
)
(92)
Drill America
1/4 in. High Speed Steel Killer Force Drill Bit (12-Pack)
Add to Cart
Compare
More Options Available
$
9
.
71
(43)
Drill America
1/4 in. x 8 in. High Speed Steel Extra Long Twist Drill Bit
Add to Cart
Compare
More Options Available
$
8
.
08
(
67
¢
/unit
)
(55)
Drill America
1/4 in. High Speed Steel General Purpose Black Oxide Twist Drill Bit (12-Pack)
Add to Cart
Compare
More Options Available
$
110
.
00
(
$11.00
/unit
)
(428)
Milwaukee
1/4 in. Cobalt Red Helix Twist Drill Bit (10-Pack)
Add to Cart
Compare
More Options Available
$
12
.
66
(
$1.06
/unit
)
(83)
Drill America
1/4 in. HSS Black and Gold Contractor Drill Bit with Split Point and 3-Flat Shank (12-Pack)
Add to Cart
Compare
Top Rated
$
40
.
61
(
$8.12
/unit
)
(427)
Milwaukee
1/4 in. Cobalt Red Helix Twist Drill Bit (5-Pack)
Add to Cart
Compare
More Options Available
$
22
.
18
(20)
Drill America
1/4 in. x 18 in. High Speed Steel Extra Long Drill Bit
Add to Cart
Compare
$
34
.
00
(
$6.80
/unit
)
(218)
Milwaukee
SHOCKWAVE 1/4 in. Titanium Twist Drill Bit (5-Pack)
Add to Cart
Compare
More Options Available
$
10
.
44
(50)
Drill America
1/4 in. x 12 in. Cobalt Aircraft Extension Drill Bit
Add to Cart
Compare