About Masonry Drill Bits
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Drill Bit Decimal Size Equivalents
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About Drill Bits
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Smooth-Finish Carbide Drill Bits
Three cutting edges instead of the typical two enable these bits to drill holes with a smoother finish than other bits. Made of solid carbide for the highest accuracy and longest tool life, they are harder, stronger, and more wear resistant than high-speed steel, cobalt steel, and carbide-tipped bits. They retain a sharp, hard edge at high temperatures for the best performance on hard and abrasive material. These bits require rigid toolholding to prevent breakage and should not be used in hand-held drilling. All are jobbers’ length so they have the rigidity and length required for most applications. A split point keeps the bit centered without a pilot hole.
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 | Shank Size | Point Style | For Use On | Each | |
Inch | |||||||||
Uncoated Carbide | |||||||||
1/16" | 0.0625" | 1 1/2" | 0.6" | Round | 1/16" | Split | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 000000 |
3/32" | 0.0938" | 2" | 0.8" | Round | 3/32" | Split | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
7/64" | 0.1094" | 2 1/4" | 1" | Round | 7/64" | Split | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
1/8" | 0.125" | 2 1/4" | 1" | Round | 1/8" | Split | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
9/64" | 0.1406" | 2 1/2" | 1.1" | Round | 9/64" | Split | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
5/32" | 0.1563" | 2 1/2" | 1.1" | Round | 5/32" | Split | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
11/64" | 0.1719" | 2 3/4" | 1.3" | Round | 11/64" | Split | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
3/16" | 0.1875" | 2 3/4" | 1.3" | Round | 3/16" | Split | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
13/64" | 0.2031" | 3" | 1.4" | Round | 13/64" | Split | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
7/32" | 0.2188" | 3" | 1.4" | Round | 7/32" | Split | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
15/64" | 0.2344" | 3 1/4" | 1.6" | Round | 15/64" | Split | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
1/4" | 0.25" | 3 1/4" | 1.6" | Round | 1/4" | Split | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
17/64" | 0.2656" | 3 1/2" | 1.7" | Round | 17/64" | Split | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
9/32" | 0.2813" | 3 1/2" | 1.7" | Round | 9/32" | Split | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
5/16" | 0.3125" | 3 3/4" | 1.9" | Round | 5/16" | Split | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
11/32" | 0.3438" | 4" | 2" | Round | 11/32" | Split | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
3/8" | 0.375" | 4 1/4" | 2.2" | Round | 3/8" | Split | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
25/64" | 0.3906" | 4 1/2" | 2.3" | Round | 25/64" | Split | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 000000 |
27/64" | 0.4219" | 4 1/2" | 2.3" | Round | 27/64" | Split | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 000000 |
7/16" | 0.4375" | 4 1/2" | 2.3" | Round | 7/16" | Split | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 000000 |
1/2" | 0.5" | 4 3/4" | 2.4" | Round | 1/2" | Split | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 000000 |
33/64" | 0.5156" | 4 3/4" | 3" | Round | 33/64" | Split | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 000000 |
Wire Gauge | |||||||||
Uncoated Carbide | |||||||||
36 ga. | 0.1065" | 2 1/4" | 1" | Round | 0.1065" | Split | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
35 ga. | 0.11" | 2 1/4" | 1" | Round | 0.11" | Split | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
34 ga. | 0.111" | 2 1/4" | 1" | Round | 0.111" | Split | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
33 ga. | 0.113" | 2 1/4" | 1" | Round | 0.113" | Split | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
32 ga. | 0.116" | 2 1/4" | 1" | Round | 0.116" | Split | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 000000 | 00000 |
31 ga. | 0.12" | 2 1/4" | 1" | Round | 0.12" | Split | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
30 ga. | 0.1285" | 2 1/4" | 1.1" | Round | 0.1285" | Split | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
29 ga. | 0.136" | 2 1/2" | 1.1" | Round | 0.136" | Split | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
28 ga. | 0.1405" | 2 1/2" | 1.1" | Round | 0.1405" | Split | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
27 ga. | 0.144" | 2 1/2" | 1.1" | Round | 0.144" | Split | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
26 ga. | 0.147" | 2 1/2" | 1.1" | Round | 0.147" | Split | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
25 ga. | 0.1495" | 2 1/2" | 1.1" | Round | 0.1495" | Split | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
24 ga. | 0.152" | 2 1/2" | 1.1" | Round | 0.152" | Split | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
23 ga. | 0.154" | 2 1/2" | 1.1" | Round | 0.154" | Split | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
22 ga. | 0.157" | 2 1/2" | 1.1" | Round | 0.157" | Split | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 000000 | 00000 |
21 ga. | 0.159" | 2 1/2" | 1.1" | Round | 0.159" | Split | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
20 ga. | 0.161" | 2 1/2" | 1.1" | Round | 0.161" | Split | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
19 ga. | 0.166" | 2 3/4" | 1.3" | Round | 0.166" | Split | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
18 ga. | 0.1695" | 2 3/4" | 1.3" | Round | 0.1695" | Split | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
17 ga. | 0.173" | 2 3/4" | 1.3" | Round | 0.173" | Split | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
16 ga. | 0.177" | 2 3/4" | 1.3" | Round | 0.177" | Split | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
15 ga. | 0.18" | 2 3/4" | 1.3" | Round | 0.18" | Split | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
14 ga. | 0.182" | 2 3/4" | 1.3" | Round | 0.182" | Split | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
13 ga. | 0.185" | 2 3/4" | 1.3" | Round | 0.185" | Split | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
12 ga. | 0.189" | 2 3/4" | 1.3" | Round | 0.189" | Split | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 000000 | 00000 |
11 ga. | 0.191" | 2 3/4" | 1.3" | Round | 0.191" | Split | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
10 ga. | 0.1935" | 2 3/4" | 1.4" | Round | 0.1935" | Split | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
9 ga. | 0.196" | 3" | 1.4" | Round | 0.196" | Split | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
8 ga. | 0.199" | 3" | 1.4" | Round | 0.199" | Split | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
7 ga. | 0.201" | 3" | 1.4" | Round | 0.201" | Split | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
6 ga. | 0.204" | 3" | 1.4" | Round | 0.204" | Split | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
5 ga. | 0.2055" | 3" | 1.4" | Round | 0.2055" | Split | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
4 ga. | 0.209" | 3" | 1.4" | Round | 0.209" | Split | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
3 ga. | 0.213" | 3" | 1.4" | Round | 0.213" | Split | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
2 ga. | 0.221" | 3" | 1.4" | Round | 0.221" | Split | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 000000 | 00000 |
1 ga. | 0.228" | 3 1/4" | 1.4" | Round | 0.228" | Split | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
Letter | |||||||||
Uncoated Carbide | |||||||||
A | 0.234" | 3 1/4" | 1.6" | Round | 0.234" | Split | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
B | 0.238" | 3 1/4" | 1.6" | Round | 0.238" | Split | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
C | 0.242" | 3 1/4" | 1.6" | Round | 0.242" | Split | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
D | 0.246" | 3 1/4" | 1.6" | Round | 0.246" | Split | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
E | 0.25" | 3 1/4" | 1.6" | Round | 1/4" | Split | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
F | 0.257" | 3 1/2" | 1.6" | Round | 0.257" | Split | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
G | 0.261" | 3 1/2" | 1.7" | Round | 0.261" | Split | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
H | 0.266" | 3 1/2" | 1.7" | Round | 0.266" | Split | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
I | 0.272" | 3 1/2" | 1.7" | Round | 0.272" | Split | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
J | 0.277" | 3 1/2" | 1.7" | Round | 0.277" | Split | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
K | 0.281" | 3 1/2" | 1.7" | Round | 0.281" | Split | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
L | 0.29" | 3 1/2" | 1.7" | Round | 0.29" | Split | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
M | 0.295" | 3 3/4" | 1.9" | Round | 0.295" | Split | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
N | 0.302" | 3 3/4" | 1.9" | Round | 0.302" | Split | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
O | 0.316" | 3 3/4" | 1.9" | Round | 0.316" | Split | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
P | 0.323" | 4" | 1.9" | Round | 0.323" | Split | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
Q | 0.332" | 4" | 2" | Round | 0.332" | Split | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
R | 0.339" | 4" | 2" | Round | 0.339" | Split | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
S | 0.348" | 4" | 2" | Round | 0.348" | Split | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
T | 0.358" | 4 1/4" | 2.2" | Round | 0.358" | Split | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
U | 0.368" | 4 1/4" | 2.2" | Round | 0.368" | Split | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
V | 0.377" | 4 1/4" | 2.2" | Round | 0.377" | Split | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 000000 |
W | 0.386" | 4 1/2" | 2.3" | Round | 0.388" | Split | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 000000 |
X | 0.397" | 4 1/2" | 2.3" | Round | 0.397" | Split | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 000000 |
Y | 0.404" | 4 1/2" | 2.3" | Round | 0.404" | Split | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 000000 |
Z | 0.413" | 4 1/2" | 2.3" | Round | 0.413" | Split | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 000000 |
Metric | |||||||||
Uncoated Carbide | |||||||||
3.0 mm | 0.1181" | 46mm | 15.9mm | Round | 3mm | Split | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 000000 | 00000 |
3.1 mm | 0.122" | 49mm | 18mm | Round | 3.1mm | Split | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
3.2 mm | 0.126" | 49mm | 18mm | Round | 3.2mm | Split | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
3.3 mm | 0.13" | 49mm | 18mm | Round | 3.3mm | Split | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
3.4 mm | 0.1339" | 52mm | 19.9mm | Round | 3.4mm | Split | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
3.5 mm | 0.1378" | 52mm | 19.9mm | Round | 3.5mm | Split | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
4.0 mm | 0.1575" | 55mm | 21.9mm | Round | 4mm | Split | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 000000 | 00000 |
4.2 mm | 0.1654" | 55mm | 21.9mm | Round | 4.2mm | Split | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
5.0 mm | 0.1968" | 62mm | 25.9mm | Round | 5mm | Split | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 000000 | 00000 |
5.5 mm | 0.2165" | 66mm | 28mm | Round | 5.5mm | Split | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
6.0 mm | 0.2362" | 66mm | 28mm | Round | 6mm | Split | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 000000 | 00000 |
6.4 mm | 0.252" | 70mm | 31mm | Round | 6.4mm | Split | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
SDS-Plus-Shank Masonry Drill Bits for Tapping Screw Installation
Each bit is precisely sized to match the tolerances necessary to achieve maximum holding strength from tapping screws. The SDS-Plus shank has two deep slots and two shallow slots for use with SDS-Plus-drive rotary hammers. These bits cannot be used with SDS-Max-drive rotary hammers.
For technical drawings and 3-D models, click on a part number.
For Screw Size | Drill Bit Size | Decimal Size Equivalent | Overall Lg. | Max. Drilling Dp. | Shank Type | Point Style | For Use On | Each | |
Inch | |||||||||
---|---|---|---|---|---|---|---|---|---|
Uncoated Carbide-Tipped Steel | |||||||||
1/4" | 1/4" | 0.25" | 4 1/2" | 2" | SDS Plus | Standard | Masonry, Concrete | 000000000 | 00000 |