Specials & Offers
Appliances
Bath
Blinds & Window Treatments
Building Materials
Lumber & Composites
Cleaning
Home Décor
Lighting
Doors & Windows
Electrical
Flooring
Hardware
Heating, Venting & Cooling
Kitchen
Garden Center
Outdoors
Paint
Plumbing
Holiday Decorations
Smart Home
Storage & Organization
Tools
Automotive
Furniture
Home Depot Gift Cards
Credit Card Services
Home Services
Home Depot Rental
Pro Services & Contractor Supply
Project Calculators
DIY Projects and Ideas
Local Ad
Store Finder
Site Map
#1 Home Improvement Retailer
Select store
...
...
Cart
Select store
...
...
Shop All
Services
DIY
Log In
Cart
...
Home
/
Tools
/
Power Tool Accessories
/
Drill Bits
/
Twist Drill Bits
CAST IRON TWIST DRILL BITS
Get It Fast
In Stock at Store Today
Next-Day Delivery
Filters
Filters
Clear All
Review Rating: 2 & Up
Bit Diameter: #25
Bit Diameter: #31
Bit Diameter: 11/64 in
Material Application: Cast Iron
Get It Fast
In Stock at Store Today
Next-Day Delivery
Department
Tools
Power Tool Accessories
Drill Bits
Twist Drill Bits
Brand
Drill America
Milwaukee
Price
to
Apply
$0 - $10
$10 - $20
$20 - $30
Review Rating
5
4 & Up
3 & Up
2 & Up
1 & Up
Bit Diameter
1/8 in
1/4 in
1/2 in
1/16 in
3/32 in
3/16 in
3/8 in
5/16 in
5/32 in
#25
5/64 in
5/8 in
7/64 in
7/32 in
7/16 in
9/64 in
9/32 in
11/64 in
13/32 in
15/64 in
17/64 in
19/64 in
#30
#31
11/32 in
#38
#40
#45
#53
#57
13/64 in
15/32 in
21/64 in
25/64 in
#32
#35
#44
31/64 in
37/64 in
#10
#14
#15
#16
#18
#1
#20
#21
#33
#34
#37
#41
#46
#47
#49
#4
#51
#60
#8
3/4 in
11/16 in
19/32 in
23/32 in
23/64 in
29/64 in
35/64 in
63/64 in
#11
#17
#23
#24
#29
#36
#39
#43
#48
#50
#52
#55
#58
#59
#5
#7
#9
1-1/4 in
1-1/8 in
1/32 in
1/64 in
9/16 in
13/16 in
17/32 in
27/64 in
33/64 in
D
#12
#13
#19
#26
#27
#28
#42
Material Application
Stainless Steel
Aluminum
Cast Iron
Duct/Sheet Metal
Steel
Angle Iron
Copper
Nickel
PVC
Plaster
Wood
Vinyl Flooring
Linoleum
Number of Pieces
1 Piece
11-20 Pieces
Bit Material
High Speed Steel
Cobalt
Carbide
Titanium
Bit Length (in.)
1.87 in
2.06 in
2.12 in
2.25 in
2.75 in
2.91 in
3 in
3.25 in
3.31 in
6 in
8 in
12 in
18 in
Features
No Additional Features
Shank Diameter
#25
11/64 in
#31
1/4 in
Shank Style
Straight
Round
Hex
Drilling Depth (in)
0.125
0.375
0.875
1
1.0625
1.25
1.625
1.875
2.125
6
13
Individual/Set
Individual
Featured Keywords
black oxide
black oxide drill bit
extra length
general purpose drill
variable helix
5x life
bright finish
cobalt alloy
cobalt twist
drill press
fractional size
gold oxide
hard metal
hard rubber
hex shank
high speed steel
left hand drill
long drill bit
quad edge tip
rapid chip removal
red helix
reverse drill
round shank
shockwave impact duty bits
solid carbide drill
stay sharper longer
straight shank
tapered drill bit
titanium coating
View Results
All Filters
Bit Diameter
Material Application
Number of Pieces
Bit Material
Bit Length (in.)
Review Rating: 2 & Up
Bit Diameter: #25
Bit Diameter: #31
Bit Diameter: 11/64 in
Material Application: Cast Iron
Clear All
22 Results
Sort by
Top Sellers
More Options Available
$
7
.
97
(4117)
Milwaukee
11/64 in. Cobalt Red Helix Drill Bit
Add to Cart
Top Rated
More Options Available
$
6
.
78
(4109)
Milwaukee
SHOCKWAVE 11/64 in. Titanium Twist 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
$
12
.
86
(
$1.07
/unit
)
(8)
Drill America
11/64 in. High Speed Steel Premium General Purpose Black Oxide Twist Drill Bit (12-Pack)
Add to Cart
More Options Available
$
7
.
59
(48)
Drill America
11/64 in. x 8 in. High Speed Steel Extra-Long Twist Drill Bit with Straight Shank
Add to Cart
More Options Available
$
11
.
51
(15)
Drill America
#31 Solid Carbide Twist Drill Bit
Add to Cart
More Options Available
$
2
.
27
(136)
Drill America
11/64 in. x 6 in. High Speed Steel Aircraft Extension Drill Bit
Add to Cart
More Options Available
$
8
.
14
(
68
¢
/unit
)
(3)
Drill America
#25 High Speed Steel Black Oxide General Purpose Split Point Twist Drill Bit (12-Pack)
Add to Cart
More Options Available
$
7
.
34
(51)
Drill America
11/64 in. x 12 in. Cobalt Aircraft Extension Drill Bit
Add to Cart
More Options Available
$
9
.
82
(
82
¢
/unit
)
(1)
Drill America
#25 High Speed Steel Premium General Purpose Black Oxide Black Oxide Twist Drill Bit (12-Pack)
Add to Cart
More Options Available
$
6
.
74
(
56
¢
/unit
)
(6)
Drill America
#31 High Speed Steel Twist Drill Bit with Bright Finish (12-Pack)
Add to Cart
More Options Available
$
2
.
67
(16)
Drill America
#31 x 6 in. Cobalt Aircraft Extension Drill Bit
Add to Cart