Shop All Savings
Appliances
Bath & Faucets
Blinds & Window Treatment
Building Materials
Lumber & Composites
Cleaning
Decor & Furniture
Lighting & Ceiling Fans
Doors & Windows
Electrical
Flooring & Area Rugs
Hardware
Heating & Cooling
Kitchen & Kitchenware
Lawn & Garden
Outdoor Living & Patio
Paint
Plumbing
Seasonal Decor
Smart Home
Storage & Organization
Tools
Automotive
Furniture
Gift Cards
Credit Cards
View All Home Services
Tool Rental
Benefits & Services For the Pro
Project Calculators
View All DIY Projects
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
CAST IRON DRILL BITS
Get It Fast
In Stock at Store Today
Free 1-2 Day Delivery
Same-Day Delivery
Filters
Filters
Clear All
Number of Pieces: 1 Piece
Material Application: Cast Iron
Shank Diameter: 3/8 in
Get It Fast
In Stock at Store Today
Free 1-2 Day Delivery
Same-Day Delivery
Availability
Show Out of Stock
Department
Tools
Power Tool Accessories
Drill Bits
Twist Drill Bits
Countersink Bits
Step Drill Bits
Review Rating
5
4 & Up
3 & Up
2 & Up
1 & Up
Brand
Drill America
Milwaukee
IDEAL
Price
to
Apply
$0 - $10
$10 - $20
$20 - $30
$30 - $40
$50 - $100
$100 - $150
Special Values
Bit Diameter
1/2 in
1-1/8 in
1-3/8 in
1/4 in
3/8 in
3/16 in
3/32 in
3/4 in
5/8 in
5/16 in
5/32 in
7/16 in
7/64 in
9/16 in
9/64 in
11/16 in
13/32 in
15/32 in
17/32 in
23/32 in
25/64 in
27/64 in
31/64 in
33/64 in
35/64 in
37/64 in
45/64 in
47/64 in
Bit Length (in.)
1.75 in
2 in
2.25 in
2.62 in
2.75 in
2.87 in
3.12 in
3.5 in
4 in
4.5 in
5 in
5.12 in
5.37 in
5.5 in
5.75 in
5.87 in
6 in
Bit Material
High Speed Steel
Cobalt
Titanium
Number of Pieces
1 Piece
2-4 Pieces
5-10 Pieces
Material Application
Stainless Steel
Aluminum
Cast Iron
Duct/Sheet Metal
Steel
Copper
Nickel
PVC
Wood
Angle Iron
Plaster
Vinyl Flooring
Linoleum
Gypsum
Shank Style
Straight
3-Flat
Shank Diameter
0.39 in
1/2 in
1/4 in
1/8 in
1 in
1/16 in
3/8 in
3/4 in
3/16 in
3/32 in
5/16 in
5/32 in
7/32 in
11/64 in
#24
13/64 in
15/64 in
35/64 in
M
#14
#18
#1
#23
#27
#2
#30
#31
#38
#39
#6
15/32 in
21/32 in
37/64 in
41/64 in
43/64 in
45/64 in
D
G
J
K
O
Q
S
U
V
Z
#12
#13
#15
#16
#19
#20
#25
#32
#33
#34
#37
#3
#40
#42
#44
#45
#46
#47
#49
#4
#52
#57
#8
0.19 in
1-3/16 in
5/64 in
7/64 in
9/32 in
9/64 in
11/32 in
13/32 in
17/64 in
19/32 in
19/64 in
23/64 in
29/32 in
31/32 in
31/64 in
33/64 in
47/64 in
51/64 in
55/64 in
57/64 in
63/64 in
A
B
E
H
I
R
T
W
X
Y
Individual/Set
Individual
Drilling Depth (in)
0.06
0.25
1.25
1.5
1.81
2
2.25
2.3125
2.375
3
3.75
3.9375
4.0625
4.3125
4.375
4.5
4.8125
View Results
All Filters
Category
Bit Diameter
Bit Length (in.)
Bit Material
Number of Pieces
Number of Pieces: 1 Piece
Material Application: Cast Iron
Shank Diameter: 3/8 in
Clear All
19 Results
Sort by:
Top Sellers
Top Sellers
Most Popular
Price Low to High
Price High to Low
Top Rated Products
Top Rated
More Options Available
$
25
.
47
(3953)
Model# 48-89-2329
Milwaukee
1/2 in. Cobalt Red Helix Twist Drill Bit
Add to Cart
Compare
More Options Available
$
15
.
47
(3954)
Model# 48-89-2321
Milwaukee
3/8 in. Cobalt Red Helix Twist Drill Bit
Add to Cart
Compare
More Options Available
$
7
.
47
(3954)
Model# 48-89-2313
Milwaukee
1/4 in. Cobalt Red Helix Twist Drill Bit
Add to Cart
Compare
More Options Available
$
6
.
47
(3952)
Model# 48-89-2309
Milwaukee
3/16 in. Cobalt Red Helix Twist Drill Bit
Add to Cart
Compare
Top Rated
More Options Available
$
10
.
47
(3952)
Model# 48-89-2317
Milwaukee
5/16 in. Cobalt Red Helix Twist Drill Bit
Add to Cart
Compare
More Options Available
$
21
.
97
(3944)
Model# 48-89-2325
Milwaukee
7/16 in. Cobalt Red Helix Twist Drill Bit
Add to Cart
Compare
Top Rated
More Options Available
$
4
.
97
(3951)
Model# 48-89-2307
Milwaukee
5/32 in. Cobalt Red Helix Twist Drill Bit
Add to Cart
Compare
More Options Available
$
4
.
47
(3952)
Model# 48-89-2306
Milwaukee
9/64 in. Red Helix Cobalt Drill Bit
Add to Cart
Compare
More Options Available
$
3
.
97
(3951)
Model# 48-89-2304
Milwaukee
7/64 in. Cobalt Red Helix Twist Drill Bit
Add to Cart
Compare
Top Rated
More Options Available
$
3
.
67
(3951)
Model# 48-89-2303
Milwaukee
3/32 in. Cobalt Red Helix Twist Drill Bit
Add to Cart
Compare
More Options Available
$
16
.
80
(79)
Model# KFDRSD3/8X5/8
Drill America
5/8 in. High Speed Steel Black and Gold Reduced Shank Twist Drill Bit with 3/8 in. Shank
Add to Cart
Compare
More Options Available
$
19
.
39
(3944)
Model# 48-89-2323
Milwaukee
13/32 in. Cobalt Red Helix Drill Bit
Add to Cart
Compare