Drill Bit Decimal Size Equivalents
More
About Drill Bits
More
Carbide Drill Bits for Hardened Steel
Harder, stronger, and more wear resistant than carbide-tipped steel, solid-carbide bits maintain their sharp edges longer. They require rigid toolholding to prevent breakage and should not be used in hand-held drilling applications. The straight flutes withstand the heavy pressure necessary to penetrate hard steel. A four-facet or split point keeps the bit centered without a pilot hole. These bits are short length, also known as screw machine or stub length, which provides maximum rigidity for drilling straighter holes than jobbers'-length drill bits.
Titanium-nitride (TiN) coated drill bits last longer and can drill at higher speeds than uncoated drill bits.
For technical drawings and 3-D models, click on a part number.
Shank | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|
Drill Bit Size | Decimal Size Equivalent | Overall Lg. | Max. Drilling Dp. | Type | Size | No. of Flutes | For Max. Hardness | Point Style | Each | |
Uncoated Carbide | ||||||||||
Inch | ||||||||||
Carbide Shank | ||||||||||
1/16" | 0.0625" | 1 1/2" | 0.3" | Round | 1/16" | 2 | Rockwell C45 | Four Facet | 0000000 | 000000 |
5/64" | 0.0781" | 2" | 0.4" | Round | 5/64" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
3/32" | 0.0938" | 2" | 0.4" | Round | 3/32" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
7/64" | 0.1094" | 2 1/4" | 0.5" | Round | 7/64" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
1/8" | 0.125" | 2 1/4" | 0.5" | Round | 1/8" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
9/64" | 0.1406" | 2 1/2" | 0.5" | Round | 9/64" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
5/32" | 0.1563" | 2 1/2" | 0.6" | Round | 5/32" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
11/64" | 0.1719" | 2 1/2" | 0.6" | Round | 11/64" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
3/16" | 0.1875" | 2 1/2" | 0.6" | Round | 3/16" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
13/64" | 0.2031" | 2 1/2" | 0.8" | Round | 13/64" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
7/32" | 0.2188" | 2 1/2" | 0.8" | Round | 7/32" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
15/64" | 0.2344" | 2 1/2" | 0.8" | Round | 15/64" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
1/4" | 0.25" | 2 1/2" | 0.8" | Round | 1/4" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
17/64" | 0.2656" | 2 1/2" | 0.8" | Round | 17/64" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
9/32" | 0.2813" | 2 1/2" | 0.8" | Round | 9/32" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
5/16" | 0.3125" | 2 1/2" | 1" | Round | 5/16" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
3/8" | 0.375" | 3" | 1" | Round | 3/8" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
7/16" | 0.4375" | 3" | 1" | Round | 7/16" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
1/2" | 0.5" | 3" | 1" | Round | 1/2" | 2 | Rockwell C45 | Four Facet | 0000000 | 000000 |
Wire Gauge | ||||||||||
Carbide Shank | ||||||||||
60 ga. | 0.04" | 1 1/2" | 0.3" | Round | 0.04" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
59 ga. | 0.041" | 1 1/2" | 0.3" | Round | 0.041" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
58 ga. | 0.042" | 1 1/2" | 0.3" | Round | 0.042" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
57 ga. | 0.043" | 1 1/2" | 0.3" | Round | 0.043" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
56 ga. | 0.0465" | 1 1/2" | 0.3" | Round | 0.0465" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
55 ga. | 0.052" | 1 1/2" | 0.3" | Round | 0.052" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
54 ga. | 0.055" | 1 1/2" | 0.3" | Round | 0.055" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
53 ga. | 0.0595" | 1 1/2" | 0.3" | Round | 0.0595" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
52 ga. | 0.0635" | 1 1/2" | 0.3" | Round | 0.0635" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
51 ga. | 0.067" | 1 1/2" | 0.3" | Round | 0.067" | 2 | Rockwell C45 | Four Facet | 000000 | 00000 |
50 ga. | 0.07" | 2" | 0.3" | Round | 0.07" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
49 ga. | 0.073" | 2" | 0.3" | Round | 0.073" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
48 ga. | 0.076" | 2" | 0.4" | Round | 0.076" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
47 ga. | 0.0785" | 2" | 0.4" | Round | 0.0785" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
46 ga. | 0.081" | 2" | 0.4" | Round | 0.081" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
45 ga. | 0.082" | 2" | 0.4" | Round | 0.082" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
44 ga. | 0.086" | 2" | 0.4" | Round | 0.086" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
43 ga. | 0.089" | 2" | 0.4" | Round | 0.089" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
42 ga. | 0.0935" | 2" | 0.4" | Round | 0.0935" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
41 ga. | 0.096" | 2" | 0.4" | Round | 0.096" | 2 | Rockwell C45 | Four Facet | 000000 | 00000 |
40 ga. | 0.098" | 2" | 0.4" | Round | 0.098" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
39 ga. | 0.0995" | 2 1/4" | 0.5" | Round | 0.0995" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
38 ga. | 0.1015" | 2 1/4" | 0.5" | Round | 0.1015" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
37 ga. | 0.104" | 2 1/4" | 0.5" | Round | 0.104" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
36 ga. | 0.1065" | 2 1/4" | 0.5" | Round | 0.1065" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
35 ga. | 0.11" | 2 1/4" | 0.5" | Round | 0.11" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
34 ga. | 0.111" | 2 1/4" | 0.5" | Round | 0.111" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
33 ga. | 0.113" | 2 1/4" | 0.5" | Round | 0.113" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
32 ga. | 0.116" | 2 1/4" | 0.5" | Round | 0.116" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
31 ga. | 0.12" | 2 1/4" | 0.5" | Round | 0.12" | 2 | Rockwell C45 | Four Facet | 000000 | 00000 |
30 ga. | 0.1285" | 2 1/4" | 0.5" | Round | 0.1285" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
29 ga. | 0.136" | 2 1/2" | 0.5" | Round | 0.136" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
28 ga. | 0.1405" | 2 1/2" | 0.5" | Round | 0.1405" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
27 ga. | 0.144" | 2 1/2" | 0.5" | Round | 0.144" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
26 ga. | 0.147" | 2 1/2" | 0.5" | Round | 0.147" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
25 ga. | 0.1495" | 2 1/2" | 0.5" | Round | 0.1495" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
24 ga. | 0.152" | 2 1/2" | 0.5" | Round | 0.152" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
23 ga. | 0.154" | 2 1/2" | 0.5" | Round | 0.154" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
22 ga. | 0.157" | 2 1/2" | 0.6" | Round | 0.157" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
21 ga. | 0.159" | 2 1/2" | 0.6" | Round | 0.159" | 2 | Rockwell C45 | Four Facet | 000000 | 00000 |
20 ga. | 0.161" | 2 1/2" | 0.6" | Round | 0.161" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
19 ga. | 0.166" | 2 1/2" | 0.6" | Round | 0.166" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
18 ga. | 0.1695" | 2 1/2" | 0.6" | Round | 0.1695" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
17 ga. | 0.173" | 2 1/2" | 0.6" | Round | 0.173" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
16 ga. | 0.177" | 2 1/2" | 0.6" | Round | 0.177" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
15 ga. | 0.18" | 2 1/2" | 0.6" | Round | 0.18" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
14 ga. | 0.182" | 2 1/2" | 0.6" | Round | 0.182" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
13 ga. | 0.185" | 2 1/2" | 0.6" | Round | 0.185" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
12 ga. | 0.189" | 2 1/2" | 0.6" | Round | 0.189" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
11 ga. | 0.191" | 2 1/2" | 0.6" | Round | 0.191" | 2 | Rockwell C45 | Four Facet | 000000 | 00000 |
10 ga. | 0.1935" | 2 1/2" | 0.6" | Round | 0.1935" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
9 ga. | 0.196" | 2 1/2" | 0.8" | Round | 0.196" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
8 ga. | 0.199" | 2 1/2" | 0.8" | Round | 0.199" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
7 ga. | 0.201" | 2 1/2" | 0.8" | Round | 0.201" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
6 ga. | 0.204" | 2 1/2" | 0.8" | Round | 0.204" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
5 ga. | 0.2055" | 2 1/2" | 0.8" | Round | 0.2055" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
4 ga. | 0.209" | 2 1/2" | 0.8" | Round | 0.209" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
3 ga. | 0.213" | 2 1/2" | 0.8" | Round | 0.213" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
2 ga. | 0.221" | 2 1/2" | 0.8" | Round | 0.221" | 2 | Rockwell C45 | Four Facet | 0000000 | 00000 |
1 ga. | 0.228" | 2 1/2" | 0.8" | Round | 0.228" | 2 | Rockwell C45 | Four Facet | 000000 | 00000 |
Letter | ||||||||||
Carbide Shank | ||||||||||
A | 0.234" | 2 1/2" | 0.8" | Round | 0.234" | 2 | Rockwell C45 | Four Facet | 00000000 | 00000 |
B | 0.238" | 2 1/2" | 0.8" | Round | 0.238" | 2 | Rockwell C45 | Four Facet | 00000000 | 00000 |
C | 0.242" | 2 1/2" | 0.8" | Round | 0.242" | 2 | Rockwell C45 | Four Facet | 00000000 | 00000 |
D | 0.246" | 2 1/2" | 0.8" | Round | 0.246" | 2 | Rockwell C45 | Four Facet | 00000000 | 00000 |
E | 0.25" | 2 1/2" | 0.8" | Round | 1/4" | 2 | Rockwell C45 | Four Facet | 00000000 | 00000 |
F | 0.257" | 2 1/2" | 0.8" | Round | 0.257" | 2 | Rockwell C45 | Four Facet | 00000000 | 00000 |
G | 0.261" | 2 1/2" | 0.8" | Round | 0.261" | 2 | Rockwell C45 | Four Facet | 00000000 | 00000 |
H | 0.266" | 2 1/2" | 0.8" | Round | 0.266" | 2 | Rockwell C45 | Four Facet | 00000000 | 00000 |
I | 0.272" | 2 1/2" | 0.8" | Round | 0.272" | 2 | Rockwell C45 | Four Facet | 00000000 | 00000 |
J | 0.277" | 2 1/2" | 0.8" | Round | 0.277" | 2 | Rockwell C45 | Four Facet | 00000000 | 00000 |
K | 0.281" | 2 1/2" | 0.8" | Round | 0.281" | 2 | Rockwell C45 | Four Facet | 00000000 | 00000 |
L | 0.29" | 2 1/2" | 0.8" | Round | 0.29" | 2 | Rockwell C45 | Four Facet | 00000000 | 00000 |
M | 0.295" | 2 1/2" | 0.8" | Round | 0.295" | 2 | Rockwell C45 | Four Facet | 00000000 | 00000 |
N | 0.302" | 2 1/2" | 1" | Round | 0.302" | 2 | Rockwell C45 | Four Facet | 00000000 | 00000 |
O | 0.316" | 2 1/2" | 1" | Round | 0.316" | 2 | Rockwell C45 | Four Facet | 00000000 | 00000 |
P | 0.323" | 2 1/2" | 1" | Round | 0.323" | 2 | Rockwell C45 | Four Facet | 00000000 | 00000 |
Q | 0.332" | 3" | 1" | Round | 0.332" | 2 | Rockwell C45 | Four Facet | 00000000 | 00000 |
R | 0.339" | 3" | 1" | Round | 0.339" | 2 | Rockwell C45 | Four Facet | 00000000 | 00000 |
S | 0.348" | 3" | 1" | Round | 0.348" | 2 | Rockwell C45 | Four Facet | 00000000 | 00000 |
T | 0.358" | 3" | 1" | Round | 0.358" | 2 | Rockwell C45 | Four Facet | 00000000 | 00000 |
U | 0.368" | 3" | 1" | Round | 0.368" | 2 | Rockwell C45 | Four Facet | 00000000 | 00000 |
V | 0.377" | 3" | 1" | Round | 0.377" | 2 | Rockwell C45 | Four Facet | 00000000 | 00000 |
W | 0.386" | 3" | 1" | Round | 0.386" | 2 | Rockwell C45 | Four Facet | 00000000 | 00000 |
X | 0.397" | 3" | 1" | Round | 0.397" | 2 | Rockwell C45 | Four Facet | 00000000 | 00000 |
Y | 0.404" | 3" | 1" | Round | 0.404" | 2 | Rockwell C45 | Four Facet | 00000000 | 00000 |
Z | 0.413" | 3" | 1" | Round | 0.413" | 2 | Rockwell C45 | Four Facet | 00000000 | 00000 |
Titanium-Nitride (TiN) Coated Carbide | ||||||||||
Inch | ||||||||||
Carbide Shank | ||||||||||
1/16" | 0.0625" | 1 1/2" | 0.3" | Round | 1/16" | 2 | Rockwell C45 | Split | 0000000 | 00000 |
5/64" | 0.0781" | 2" | 0.4" | Round | 5/64" | 2 | Rockwell C45 | Split | 0000000 | 00000 |
3/32" | 0.0938" | 2" | 0.4" | Round | 3/32" | 2 | Rockwell C45 | Split | 0000000 | 00000 |
7/64" | 0.1094" | 2 1/4" | 0.5" | Round | 7/64" | 2 | Rockwell C45 | Split | 0000000 | 00000 |
1/8" | 0.125" | 2 1/4" | 0.5" | Round | 1/8" | 2 | Rockwell C45 | Split | 0000000 | 00000 |
9/64" | 0.1406" | 2 1/2" | 0.5" | Round | 9/64" | 2 | Rockwell C45 | Split | 0000000 | 00000 |
5/32" | 0.1563" | 2 1/2" | 0.6" | Round | 5/32" | 2 | Rockwell C45 | Split | 0000000 | 00000 |
11/64" | 0.1719" | 2 1/2" | 0.6" | Round | 11/64" | 2 | Rockwell C45 | Split | 0000000 | 00000 |
3/16" | 0.1875" | 2 1/2" | 0.6" | Round | 3/16" | 2 | Rockwell C45 | Split | 0000000 | 00000 |
13/64" | 0.2031" | 2 1/2" | 0.8" | Round | 13/64" | 2 | Rockwell C45 | Split | 0000000 | 00000 |
7/32" | 0.2188" | 2 1/2" | 0.8" | Round | 7/32" | 2 | Rockwell C45 | Split | 0000000 | 00000 |
15/64" | 0.2344" | 2 1/2" | 0.8" | Round | 15/64" | 2 | Rockwell C45 | Split | 0000000 | 00000 |
1/4" | 0.25" | 2 1/2" | 0.8" | Round | 1/4" | 2 | Rockwell C45 | Split | 0000000 | 00000 |
17/64" | 0.2656" | 2 1/2" | 0.8" | Round | 17/64" | 2 | Rockwell C45 | Split | 0000000 | 00000 |
9/32" | 0.2813" | 2 1/2" | 0.8" | Round | 9/32" | 2 | Rockwell C45 | Split | 0000000 | 00000 |
5/16" | 0.3125" | 2 1/2" | 1" | Round | 5/16" | 2 | Rockwell C45 | Split | 0000000 | 00000 |
3/8" | 0.375" | 3" | 1" | Round | 3/8" | 2 | Rockwell C45 | Split | 0000000 | 00000 |
7/16" | 0.4375" | 3" | 1" | Round | 7/16" | 2 | Rockwell C45 | Split | 0000000 | 00000 |
1/2" | 0.5" | 3" | 1" | Round | 1/2" | 2 | Rockwell C45 | Split | 0000000 | 000000 |
Wire Gauge | ||||||||||
Carbide Shank | ||||||||||
56 ga. | 0.0465" | 1 1/2" | 0.3" | Round | 0.0465" | 2 | Rockwell C45 | Split | 00000000 | 00000 |
55 ga. | 0.052" | 1 1/2" | 0.3" | Round | 0.052" | 2 | Rockwell C45 | Split | 00000000 | 00000 |
54 ga. | 0.055" | 1 1/2" | 0.3" | Round | 0.055" | 2 | Rockwell C45 | Split | 00000000 | 00000 |
53 ga. | 0.0595" | 1 1/2" | 0.3" | Round | 0.0595" | 2 | Rockwell C45 | Split | 00000000 | 00000 |
52 ga. | 0.0635" | 1 1/2" | 0.3" | Round | 0.0635" | 2 | Rockwell C45 | Split | 00000000 | 00000 |
51 ga. | 0.067" | 1 1/2" | 0.3" | Round | 0.067" | 2 | Rockwell C45 | Split | 00000000 | 00000 |
50 ga. | 0.07" | 2" | 0.3" | Round | 0.07" | 2 | Rockwell C45 | Split | 00000000 | 00000 |
49 ga. | 0.073" | 2" | 0.3" | Round | 0.073" | 2 | Rockwell C45 | Split | 00000000 | 00000 |
48 ga. | 0.076" | 2" | 0.4" | Round | 0.076" | 2 | Rockwell C45 | Split | 00000000 | 00000 |
47 ga. | 0.0785" | 2" | 0.4" | Round | 0.0785" | 2 | Rockwell C45 | Split | 00000000 | 00000 |
46 ga. | 0.081" | 2" | 0.4" | Round | 0.081" | 2 | Rockwell C45 | Split | 00000000 | 00000 |
45 ga. | 0.082" | 2" | 0.4" | Round | 0.082" | 2 | Rockwell C45 | Split | 00000000 | 00000 |
44 ga. | 0.086" | 2" | 0.4" | Round | 0.086" | 2 | Rockwell C45 | Split | 00000000 | 00000 |
43 ga. | 0.089" | 2" | 0.4" | Round | 0.089" | 2 | Rockwell C45 | Split | 00000000 | 00000 |
42 ga. | 0.0935" | 2" | 0.4" | Round | 0.0935" | 2 | Rockwell C45 | Split | 00000000 | 00000 |
41 ga. | 0.096" | 2" | 0.4" | Round | 0.096" | 2 | Rockwell C45 | Split | 00000000 | 00000 |
40 ga. | 0.098" | 2" | 0.4" | Round | 0.098" | 2 | Rockwell C45 | Split | 00000000 | 00000 |
39 ga. | 0.0995" | 2 1/4" | 0.5" | Round | 0.0995" | 2 | Rockwell C45 | Split | 00000000 | 00000 |
38 ga. | 0.1015" | 2 1/4" | 0.5" | Round | 0.1015" | 2 | Rockwell C45 | Split | 00000000 | 00000 |
37 ga. | 0.104" | 2 1/4" | 0.5" | Round | 0.104" | 2 | Rockwell C45 | Split | 00000000 | 00000 |
36 ga. | 0.1065" | 2 1/4" | 0.5" | Round | 0.1065" | 2 | Rockwell C45 | Split | 00000000 | 00000 |
35 ga. | 0.11" | 2 1/4" | 0.5" | Round | 0.11" | 2 | Rockwell C45 | Split | 00000000 | 00000 |
34 ga. | 0.111" | 2 1/4" | 0.5" | Round | 0.111" | 2 | Rockwell C45 | Split | 00000000 | 00000 |
33 ga. | 0.113" | 2 1/4" | 0.5" | Round | 0.113" | 2 | Rockwell C45 | Split | 00000000 | 00000 |
32 ga. | 0.116" | 2 1/4" | 0.5" | Round | 0.116" | 2 | Rockwell C45 | Split | 00000000 | 00000 |
31 ga. | 0.12" | 2 1/4" | 0.5" | Round | 0.12" | 2 | Rockwell C45 | Split | 0000000 | 00000 |
30 ga. | 0.1285" | 2 1/4" | 0.5" | Round | 0.1285" | 2 | Rockwell C45 | Split | 00000000 | 00000 |
29 ga. | 0.136" | 2 1/2" | 0.5" | Round | 0.136" | 2 | Rockwell C45 | Split | 00000000 | 00000 |
28 ga. | 0.1405" | 2 1/2" | 0.5" | Round | 0.1405" | 2 | Rockwell C45 | Split | 00000000 | 00000 |
27 ga. | 0.144" | 2 1/2" | 0.5" | Round | 0.144" | 2 | Rockwell C45 | Split | 00000000 | 00000 |
26 ga. | 0.147" | 2 1/2" | 0.5" | Round | 0.147" | 2 | Rockwell C45 | Split | 00000000 | 00000 |
25 ga. | 0.1495" | 2 1/2" | 0.5" | Round | 0.1495" | 2 | Rockwell C45 | Split | 00000000 | 00000 |
24 ga. | 0.152" | 2 1/2" | 0.5" | Round | 0.152" | 2 | Rockwell C45 | Split | 00000000 | 00000 |
23 ga. | 0.154" | 2 1/2" | 0.5" | Round | 0.154" | 2 | Rockwell C45 | Split | 00000000 | 00000 |
22 ga. | 0.157" | 2 1/2" | 0.6" | Round | 0.157" | 2 | Rockwell C45 | Split | 0000000 | 00000 |
21 ga. | 0.159" | 2 1/2" | 0.6" | Round | 0.159" | 2 | Rockwell C45 | Split | 00000000 | 00000 |
20 ga. | 0.161" | 2 1/2" | 0.6" | Round | 0.161" | 2 | Rockwell C45 | Split | 00000000 | 00000 |
19 ga. | 0.166" | 2 1/2" | 0.6" | Round | 0.166" | 2 | Rockwell C45 | Split | 00000000 | 00000 |
18 ga. | 0.1695" | 2 1/2" | 0.6" | Round | 0.1695" | 2 | Rockwell C45 | Split | 00000000 | 00000 |
17 ga. | 0.173" | 2 1/2" | 0.6" | Round | 0.173" | 2 | Rockwell C45 | Split | 00000000 | 00000 |
16 ga. | 0.177" | 2 1/2" | 0.6" | Round | 0.177" | 2 | Rockwell C45 | Split | 00000000 | 00000 |
15 ga. | 0.18" | 2 1/2" | 0.6" | Round | 0.18" | 2 | Rockwell C45 | Split | 00000000 | 00000 |
14 ga. | 0.182" | 2 1/2" | 0.6" | Round | 0.182" | 2 | Rockwell C45 | Split | 00000000 | 00000 |
13 ga. | 0.185" | 2 1/2" | 0.6" | Round | 0.185" | 2 | Rockwell C45 | Split | 00000000 | 00000 |
12 ga. | 0.189" | 2 1/2" | 0.6" | Round | 0.189" | 2 | Rockwell C45 | Split | 00000000 | 00000 |
11 ga. | 0.191" | 2 1/2" | 0.6" | Round | 0.191" | 2 | Rockwell C45 | Split | 00000000 | 00000 |
10 ga. | 0.1935" | 2 1/2" | 0.6" | Round | 0.1935" | 2 | Rockwell C45 | Split | 00000000 | 00000 |
9 ga. | 0.196" | 2 1/2" | 0.8" | Round | 0.196" | 2 | Rockwell C45 | Split | 00000000 | 00000 |
8 ga. | 0.199" | 2 1/2" | 0.8" | Round | 0.199" | 2 | Rockwell C45 | Split | 00000000 | 00000 |
7 ga. | 0.201" | 2 1/2" | 0.8" | Round | 0.201" | 2 | Rockwell C45 | Split | 00000000 | 00000 |
6 ga. | 0.204" | 2 1/2" | 0.8" | Round | 0.204" | 2 | Rockwell C45 | Split | 00000000 | 00000 |
5 ga. | 0.2055" | 2 1/2" | 0.8" | Round | 0.2055" | 2 | Rockwell C45 | Split | 00000000 | 00000 |
4 ga. | 0.209" | 2 1/2" | 0.8" | Round | 0.209" | 2 | Rockwell C45 | Split | 00000000 | 00000 |
3 ga. | 0.213" | 2 1/2" | 0.8" | Round | 0.213" | 2 | Rockwell C45 | Split | 00000000 | 00000 |
2 ga. | 0.221" | 2 1/2" | 0.8" | Round | 0.221" | 2 | Rockwell C45 | Split | 00000000 | 00000 |
1 ga. | 0.228" | 2 1/2" | 0.8" | Round | 0.228" | 2 | Rockwell C45 | Split | 00000000 | 00000 |
Carbide-Tipped Drill Bits for Hardened Steel
The straight flutes and notched point withstand the heavy pressure necessary to penetrate hard steel. These carbide-tipped bits maintain their sharp edges when drilling abrasive material. Because they aren’t as brittle as solid carbide bits, they can be used in less rigid setups, such as a hand-held drill. They are jobbers' length and have the rigidity and length required for most hand-held drilling and machine tool applications.
For technical drawings and 3-D models, click on a part number.
Shank | |||||||||
---|---|---|---|---|---|---|---|---|---|
Drill Bit Size | Decimal Size Equivalent | Overall Lg. | Max. Drilling Dp. | Type | Size | Point Style | For Max. Hardness | Each | |
Inch | |||||||||
Uncoated Carbide-Tipped Steel | |||||||||
3/16" | 0.1875" | 3 1/2" | 0.75" | Round | 3/16" | Notched | Rockwell C60 | 0000000 | 000000 |
13/64" | 0.2031" | 3 3/4" | 0.81" | Round | 13/64" | Notched | Rockwell C60 | 0000000 | 00000 |
7/32" | 0.2188" | 3 3/4" | 0.87" | Round | 7/32" | Notched | Rockwell C60 | 0000000 | 00000 |
15/64" | 0.2344" | 4" | 0.93" | Round | 15/64" | Notched | Rockwell C60 | 0000000 | 00000 |
1/4" | 0.25" | 4" | 1" | Round | 1/4" | Notched | Rockwell C60 | 0000000 | 00000 |
17/64" | 0.2656" | 4 1/4" | 1.06" | Round | 17/64" | Notched | Rockwell C60 | 0000000 | 00000 |
9/32" | 0.2813" | 4 1/4" | 1.12" | Round | 9/32" | Notched | Rockwell C60 | 0000000 | 00000 |
19/64" | 0.2969" | 4 1/2" | 1.18" | Round | 19/64" | Notched | Rockwell C60 | 0000000 | 00000 |
5/16" | 0.3125" | 4 1/2" | 1.25" | Round | 5/16" | Notched | Rockwell C60 | 0000000 | 00000 |
21/64" | 0.3281" | 4 3/4" | 1.31" | Round | 21/64" | Notched | Rockwell C60 | 0000000 | 00000 |
11/32" | 0.3438" | 4 3/4" | 1.37" | Round | 11/32" | Notched | Rockwell C60 | 0000000 | 00000 |
23/64" | 0.3594" | 5" | 1.43" | Round | 23/64" | Notched | Rockwell C60 | 0000000 | 00000 |
3/8" | 0.375" | 5" | 1.5" | Round | 3/8" | Notched | Rockwell C60 | 0000000 | 00000 |
25/64" | 0.3906" | 5 1/4" | 1.56" | Round | 25/64" | Notched | Rockwell C60 | 0000000 | 00000 |
13/32" | 0.4063" | 5 1/4" | 1.62" | Round | 13/32" | Notched | Rockwell C60 | 0000000 | 00000 |
27/64" | 0.4219" | 5 1/2" | 1.68" | Round | 27/64" | Notched | Rockwell C60 | 0000000 | 00000 |
7/16" | 0.4375" | 5 1/2" | 1.75" | Round | 7/16" | Notched | Rockwell C60 | 0000000 | 00000 |
15/32" | 0.4688" | 5 3/4" | 1.87" | Round | 15/32" | Notched | Rockwell C60 | 0000000 | 00000 |
1/2" | 0.5" | 6" | 2" | Round | 1/2" | Notched | Rockwell C60 | 0000000 | 00000 |
17/32" | 0.5313" | 6" | 2.12" | Round | 17/32" | Notched | Rockwell C60 | 0000000 | 00000 |
9/16" | 0.5625" | 6" | 2.25" | Round | 9/16" | Notched | Rockwell C60 | 0000000 | 00000 |
5/8" | 0.625" | 7" | 2.5" | Round | 5/8" | Notched | Rockwell C60 | 0000000 | 00000 |
3/4" | 0.75" | 8" | 3" | Round | 3/4" | Notched | Rockwell C60 | 0000000 | 000000 |
Metric | |||||||||
Uncoated Carbide-Tipped Steel | |||||||||
5.0 mm | 0.1968" | 95mm | 20mm | Round | 5mm | Notched | Rockwell C60 | 0000000 | 00000 |
5.5 mm | 0.2165" | 95mm | 22mm | Round | 5.5mm | Notched | Rockwell C60 | 0000000 | 00000 |
6.0 mm | 0.2362" | 102mm | 24mm | Round | 6mm | Notched | Rockwell C60 | 0000000 | 00000 |
6.5 mm | 0.2559" | 108mm | 26mm | Round | 6.5mm | Notched | Rockwell C60 | 0000000 | 00000 |
7.0 mm | 0.2756" | 108mm | 28mm | Round | 7mm | Notched | Rockwell C60 | 0000000 | 00000 |
7.5 mm | 0.2953" | 114mm | 30mm | Round | 7.5mm | Notched | Rockwell C60 | 0000000 | 00000 |
8.0 mm | 0.315" | 114mm | 32mm | Round | 8mm | Notched | Rockwell C60 | 0000000 | 00000 |
8.5 mm | 0.3346" | 121mm | 34mm | Round | 8.5mm | Notched | Rockwell C60 | 0000000 | 00000 |
9.0 mm | 0.3543" | 127mm | 36mm | Round | 9mm | Notched | Rockwell C60 | 0000000 | 00000 |
9.5 mm | 0.374" | 127mm | 38mm | Round | 9.5mm | Notched | Rockwell C60 | 0000000 | 00000 |
10.0 mm | 0.3937" | 133mm | 40mm | Round | 10mm | Notched | Rockwell C60 | 0000000 | 00000 |
10.5 mm | 0.4134" | 140mm | 42mm | Round | 10.5mm | Notched | Rockwell C60 | 0000000 | 00000 |
11.0 mm | 0.4331" | 140mm | 44mm | Round | 11mm | Notched | Rockwell C60 | 0000000 | 00000 |
11.5 mm | 0.4528" | 146mm | 46mm | Round | 11.5mm | Notched | Rockwell C60 | 0000000 | 00000 |
12.0 mm | 0.4724" | 146mm | 48mm | Round | 12mm | Notched | Rockwell C60 | 0000000 | 00000 |
12.5 mm | 0.4921" | 152mm | 50mm | Round | 12.5mm | Notched | Rockwell C60 | 0000000 | 00000 |
13.0 mm | 0.5118" | 152mm | 52mm | Round | 13mm | Notched | Rockwell C60 | 0000000 | 00000 |
13.5 mm | 0.5315" | 152mm | 54mm | Round | 13.5mm | Notched | Rockwell C60 | 0000000 | 00000 |
14.0 mm | 0.5512" | 152mm | 56mm | Round | 14mm | Notched | Rockwell C60 | 0000000 | 00000 |