About Drill Bits
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Drill Bit Decimal Size Equivalents
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Short-Flute Extended-Length Carbide-Tipped Drill Bits
The short flutes provide increased rigidity for drilling straighter holes and the long length lets you access hard-to-reach spots. More wear resistant than cobalt steel and high-speed steel, these carbide-tipped bits maintain a sharper, harder edge at high temperatures for excellent performance on abrasive material, such as plastic. Because they aren’t as brittle as solid carbide bits, they can be used in less rigid setups, such as a hand-held drill. A split point keeps the bit centered without a pilot hole.
For technical drawings and 3-D models, click on a part number.
Shank | 6" Overall Lg. | 12" Overall Lg. | |||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Drill Bit Size | Decimal Size Equivalent | Type | Size | Point Style | For Use On | Max. Drilling Dp. | Each | Max. Drilling Dp. | Each | ||
Inch | |||||||||||
Uncoated Carbide-Tipped Steel | |||||||||||
1/8" | 0.125" | Round | 1/8" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | 1.63" | 0000000 | 000000 | 1.31" | 0000000 | 000000 |
9/64" | 0.1406" | Round | 9/64" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | 1.75" | 0000000 | 00000 | 1.65" | 0000000 | 00000 |
5/32" | 0.1563" | Round | 5/32" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | 2" | 0000000 | 00000 | 1.61" | 0000000 | 00000 |
3/16" | 0.1875" | Round | 3/16" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | 2.31" | 0000000 | 00000 | 1.84" | 0000000 | 00000 |
13/64" | 0.2031" | Round | 13/64" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | 2.44" | 0000000 | 00000 | 1.99" | 0000000 | 00000 |
7/32" | 0.2188" | Round | 7/32" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | 2.5" | 0000000 | 00000 | 1.95" | 0000000 | 00000 |
1/4" | 0.25" | Round | 1/4" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | 2.75" | 0000000 | 00000 | 2.13" | 0000000 | 00000 |
17/64" | 0.2656" | Round | 17/64" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | 2.88" | 0000000 | 00000 | 2.41" | 0000000 | 00000 |
9/32" | 0.2813" | Round | 9/32" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | 2.94" | 0000000 | 00000 | 2.37" | 0000000 | 00000 |
5/16" | 0.3125" | Round | 5/16" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | 3.19" | 0000000 | 00000 | 2.56" | 0000000 | 00000 |
21/64" | 0.3281" | Round | 21/64" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | 3.31" | 0000000 | 00000 | 2.78" | 0000000 | 00000 |
3/8" | 0.375" | Round | 3/8" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | 3.63" | 0000000 | 00000 | 2.88" | 0000000 | 00000 |
25/64" | 0.3906" | Round | 25/64" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | 3.75" | 0000000 | 00000 | 3.09" | 0000000 | 00000 |
27/64" | 0.4219" | Round | 27/64" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | 3.94" | 0000000 | 00000 | 3.22" | 0000000 | 00000 |
7/16" | 0.4375" | Round | 7/16" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | 4.06" | 0000000 | 00000 | 3.19" | 0000000 | 00000 |
1/2" | 0.5" | Round | 1/2" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | 4.5" | 0000000 | 00000 | 3.75" | 0000000 | 00000 |
Wire Gauge | |||||||||||
Uncoated Carbide-Tipped Steel | |||||||||||
32 ga. | 0.116" | Round | 0.116" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | __ | 000000 | 00 | 1.34" | 00000000 | 00000 |
31 ga. | 0.12" | Round | 0.12" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | __ | 000000 | 00 | 1.33" | 00000000 | 00000 |
30 ga. | 0.1285" | Round | 0.1285" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | __ | 000000 | 00 | 1.3" | 00000000 | 00000 |
29 ga. | 0.136" | Round | 0.136" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | __ | 000000 | 00 | 1.66" | 00000000 | 00000 |
28 ga. | 0.1405" | Round | 0.1405" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | __ | 000000 | 00 | 1.65" | 00000000 | 00000 |
27 ga. | 0.144" | Round | 0.144" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | __ | 000000 | 00 | 1.64" | 00000000 | 00000 |
26 ga. | 0.147" | Round | 0.147" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | __ | 000000 | 00 | 1.63" | 00000000 | 00000 |
25 ga. | 0.1495" | Round | 0.1495" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | __ | 000000 | 00 | 1.63" | 00000000 | 00000 |
24 ga. | 0.152" | Round | 0.152" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | __ | 000000 | 00 | 1.62" | 00000000 | 00000 |
23 ga. | 0.154" | Round | 0.154" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | __ | 000000 | 00 | 1.62" | 00000000 | 00000 |
22 ga. | 0.157" | Round | 0.157" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | __ | 000000 | 00 | 1.61" | 00000000 | 00000 |
21 ga. | 0.159" | Round | 0.159" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | __ | 000000 | 00 | 1.6" | 00000000 | 00000 |
20 ga. | 0.161" | Round | 0.161" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | __ | 000000 | 00 | 1.91" | 00000000 | 00000 |
19 ga. | 0.166" | Round | 0.166" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | __ | 000000 | 00 | 1.9" | 00000000 | 00000 |
18 ga. | 0.1695" | Round | 0.1695" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | __ | 000000 | 00 | 1.89" | 00000000 | 00000 |
17 ga. | 0.173" | Round | 0.173" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | __ | 000000 | 00 | 1.88" | 00000000 | 00000 |
16 ga. | 0.177" | Round | 0.177" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | __ | 000000 | 00 | 1.87" | 00000000 | 00000 |
15 ga. | 0.18" | Round | 0.18" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | __ | 000000 | 00 | 1.86" | 00000000 | 00000 |
14 ga. | 0.182" | Round | 0.182" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | __ | 000000 | 00 | 1.86" | 00000000 | 00000 |
13 ga. | 0.185" | Round | 0.185" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | __ | 000000 | 00 | 1.85" | 00000000 | 00000 |
12 ga. | 0.189" | Round | 0.189" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | __ | 000000 | 00 | 1.84" | 00000000 | 00000 |
11 ga. | 0.191" | Round | 0.191" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | __ | 000000 | 00 | 1.84" | 00000000 | 00000 |
10 ga. | 0.1935" | Round | 0.1935" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | __ | 000000 | 00 | 2.02" | 00000000 | 00000 |
9 ga. | 0.196" | Round | 0.196" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | __ | 000000 | 00 | 2.01" | 00000000 | 00000 |
8 ga. | 0.199" | Round | 0.199" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | __ | 000000 | 00 | 2" | 00000000 | 00000 |
7 ga. | 0.201" | Round | 0.201" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | __ | 000000 | 00 | 2" | 00000000 | 00000 |
6 ga. | 0.204" | Round | 0.204" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | __ | 000000 | 00 | 1.99" | 00000000 | 00000 |
5 ga. | 0.2055" | Round | 0.2055" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | __ | 000000 | 00 | 1.99" | 00000000 | 00000 |
4 ga. | 0.209" | Round | 0.209" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | __ | 000000 | 00 | 1.98" | 00000000 | 00000 |
3 ga. | 0.213" | Round | 0.213" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | __ | 000000 | 00 | 1.97" | 00000000 | 00000 |
2 ga. | 0.221" | Round | 0.221" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | __ | 000000 | 00 | 1.95" | 00000000 | 00000 |
1 ga. | 0.228" | Round | 0.228" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | __ | 000000 | 00 | 2.18" | 00000000 | 00000 |
Letter | |||||||||||
Uncoated Carbide-Tipped Steel | |||||||||||
A | 0.234" | Round | 0.234" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | __ | 000000 | 00 | 2.17" | 00000000 | 00000 |
B | 0.238" | Round | 0.238" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | __ | 000000 | 00 | 2.16" | 00000000 | 00000 |
C | 0.242" | Round | 0.242" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | __ | 000000 | 00 | 2.15" | 00000000 | 00000 |
D | 0.246" | Round | 0.246" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | __ | 000000 | 00 | 2.14" | 00000000 | 00000 |
F | 0.257" | Round | 0.257" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | __ | 000000 | 00 | 2.42" | 00000000 | 00000 |
G | 0.261" | Round | 0.261" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | __ | 000000 | 00 | 2.42" | 00000000 | 00000 |
H | 0.266" | Round | 0.266" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | __ | 000000 | 00 | 2.41" | 00000000 | 00000 |
I | 0.272" | Round | 0.272" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | __ | 000000 | 00 | 2.39" | 00000000 | 00000 |
J | 0.277" | Round | 0.277" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | __ | 000000 | 00 | 2.38" | 00000000 | 00000 |
K | 0.281" | Round | 0.281" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | __ | 000000 | 00 | 2.38" | 00000000 | 00000 |
L | 0.29" | Round | 0.29" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | __ | 000000 | 00 | 2.61" | 00000000 | 00000 |
M | 0.295" | Round | 0.295" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | __ | 000000 | 00 | 2.6" | 00000000 | 00000 |
N | 0.302" | Round | 0.302" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | __ | 000000 | 00 | 2.58" | 00000000 | 00000 |
O | 0.316" | Round | 0.316" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | __ | 000000 | 00 | 2.56" | 00000000 | 00000 |
P | 0.323" | Round | 0.323" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | __ | 000000 | 00 | 2.79" | 00000000 | 00000 |
Q | 0.332" | Round | 0.332" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | __ | 000000 | 00 | 2.77" | 00000000 | 00000 |
R | 0.339" | Round | 0.339" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | __ | 000000 | 00 | 2.76" | 00000000 | 00000 |
S | 0.348" | Round | 0.348" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | __ | 000000 | 00 | 2.93" | 00000000 | 00000 |
T | 0.358" | Round | 0.358" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | __ | 000000 | 00 | 2.91" | 00000000 | 00000 |
U | 0.368" | Round | 0.368" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | __ | 000000 | 00 | 2.89" | 00000000 | 00000 |
V | 0.377" | Round | 0.377" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | __ | 000000 | 00 | 2.87" | 00000000 | 00000 |
W | 0.386" | Round | 0.386" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | __ | 000000 | 00 | 3.1" | 00000000 | 00000 |
X | 0.397" | Round | 0.397" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | __ | 000000 | 00 | 3.08" | 00000000 | 00000 |
Y | 0.404" | Round | 0.404" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | __ | 000000 | 00 | 3.07" | 00000000 | 00000 |
Z | 0.413" | Round | 0.413" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | __ | 000000 | 00 | 3.24" | 00000000 | 00000 |