About Keyway Broaches
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Rotary Hex Broaches
Used in CNC and milling machines, these broaches turn round holes into hexagonal ones with more accuracy than traditional push broaches. Pair them with a rotary broach holder (sold separately), which positions the broach at a slight angle so only one corner is cutting at a time. The hex-shaped holes these broaches create are useful for holding hex-head screws and shafts in finished parts, as well as for cutting hex drives into screw heads. They work on through holes as well as blind holes, which don’t go all the way through. If you’re cutting soft material, don’t have a CNC or milling machine, or don’t need accuracy, use these broaches in the traditional push style, without the holder.
A tolerance of 0” to 0.001” means these broaches cut with a standard degree of accuracy, making them good for most general applications. They’re made of M2 high-speed steel, the standard material for cutting tools.
For technical drawings and 3-D models, click on a part number.
Hex Size | Hex Size Tolerance | Maximum Depth of Cut | Overall Length | Shank Shape | For Use On | Each | |
0.315" Shank Diameter | |||||||
---|---|---|---|---|---|---|---|
0.05" | 0" to 0.001" | 5/64" | 1 1/4" | Round | Aluminum, Brass, Bronze, Iron, Plastic, Steel | 00000000 | 000000 |
1/16" | 0" to 0.001" | 3/32" | 1 1/4" | Round | Aluminum, Brass, Bronze, Iron, Plastic, Steel | 00000000 | 00000 |
3/32" | 0" to 0.001" | 9/64" | 1 1/4" | Round | Aluminum, Brass, Bronze, Iron, Plastic, Steel | 00000000 | 00000 |
1/8" | 0" to 0.001" | 3/16" | 1 1/4" | Round | Aluminum, Brass, Bronze, Iron, Plastic, Steel | 00000000 | 00000 |
5/32" | 0" to 0.001" | 1/4" | 1 1/4" | Round | Aluminum, Brass, Bronze, Iron, Plastic, Steel | 00000000 | 00000 |
3/16" | 0" to 0.001" | 9/32" | 1 1/4" | Round | Aluminum, Brass, Bronze, Iron, Plastic, Steel | 00000000 | 00000 |
1/4" | 0" to 0.001" | 3/8" | 1 1/4" | Round | Aluminum, Brass, Bronze, Iron, Plastic, Steel | 00000000 | 00000 |
5/16" | 0" to 0.001" | 3/8" | 1 1/4" | Round | Aluminum, Brass, Bronze, Iron, Plastic, Steel | 00000000 | 000000 |
3/8" | 0" to 0.001" | 1/2" | 1 1/4" | Round | Aluminum, Brass, Bronze, Iron, Plastic, Steel | 00000000 | 000000 |
4mm | 0" to 0.001" | 1/4" | 1 1/4" | Round | Aluminum, Brass, Bronze, Iron, Plastic, Steel | 00000000 | 00000 |
5mm | 0" to 0.001" | 5/16" | 1 1/4" | Round | Aluminum, Brass, Bronze, Iron, Plastic, Steel | 00000000 | 00000 |
8mm | 0" to 0.001" | 3/8" | 1 1/4" | Round | Aluminum, Brass, Bronze, Iron, Plastic, Steel | 00000000 | 000000 |
1/2" Shank Diameter | |||||||
3/32" | 0" to 0.001" | 9/64" | 1 3/4" | Round | Aluminum, Brass, Bronze, Iron, Plastic, Steel | 00000000 | 00000 |
5/32" | 0" to 0.001" | 1/4" | 1 3/4" | Round | Aluminum, Brass, Bronze, Iron, Plastic, Steel | 0000000 | 00000 |
3/16" | 0" to 0.001" | 9/32" | 1 3/4" | Round | Aluminum, Brass, Bronze, Iron, Plastic, Steel | 00000000 | 00000 |
7/32" | 0" to 0.001" | 9/32" | 1 3/4" | Round | Aluminum, Brass, Bronze, Iron, Plastic, Steel | 00000000 | 00000 |
1/4" | 0" to 0.001" | 3/8" | 1 3/4" | Round | Aluminum, Brass, Bronze, Iron, Plastic, Steel | 00000000 | 00000 |
5/16" | 0" to 0.001" | 1/2" | 1 3/4" | Round | Aluminum, Brass, Bronze, Iron, Plastic, Steel | 00000000 | 00000 |
3/8" | 0" to 0.001" | 9/16" | 1 3/4" | Round | Aluminum, Brass, Bronze, Iron, Plastic, Steel | 00000000 | 00000 |
1/2" | 0" to 0.001" | 5/8" | 1 3/4" | Round | Aluminum, Brass, Bronze, Iron, Plastic, Steel | 00000000 | 000000 |
5/8" | 0" to 0.001" | 5/8" | 1 3/4" | Round | Aluminum, Brass, Bronze, Iron, Plastic, Steel | 00000000 | 000000 |
11/16" | 0" to 0.001" | 5/8" | 1 3/4" | Round | Aluminum, Brass, Bronze, Iron, Plastic, Steel | 00000000 | 000000 |
3/4" | 0" to 0.001" | 5/8" | 1 3/4" | Round | Aluminum, Brass, Bronze, Iron, Plastic, Steel | 00000000 | 000000 |
5mm | 0" to 0.001" | 5/16" | 1 3/4" | Round | Aluminum, Brass, Bronze, Iron, Plastic, Steel | 0000000 | 00000 |
6mm | 0" to 0.001" | 3/8" | 1 3/4" | Round | Aluminum, Brass, Bronze, Iron, Plastic, Steel | 00000000 | 00000 |
8mm | 0" to 0.001" | 1/2" | 1 3/4" | Round | Aluminum, Brass, Bronze, Iron, Plastic, Steel | 00000000 | 00000 |
10mm | 0" to 0.001" | 9/16" | 1 3/4" | Round | Aluminum, Brass, Bronze, Iron, Plastic, Steel | 00000000 | 00000 |
15mm | 0" to 0.001" | 5/8" | 1 3/4" | Round | Aluminum, Brass, Bronze, Iron, Plastic, Steel | 0000000 | 000000 |
Hex Broaches
Transform round holes into finely finished hex-shaped holes. Drill a pilot hole into your workpiece using the drill size listed. Use with hand and hydraulic arbor presses. No shims or bushings are required.
Hex Size | Actual Hex Size | Actual Hex Size Tolerance | Overall Lg. | Use with Drill Bit Size | Shank Shape | For Use On | Each | |
Uncoated High-Speed Steel | ||||||||
---|---|---|---|---|---|---|---|---|
1/8" | 0.1260" | -0.0005" to 0.0005" | 4 1/8" | 1/8" | Round | Aluminum, Brass, Bronze, Iron, Plastic, Steel | 0000000 | 0000000 |
3/16" | 0.1885" | -0.0005" to 0.0005" | 5 1/16" | 3/16" | Round | Aluminum, Brass, Bronze, Iron, Plastic, Steel | 0000000 | 000000 |
1/4" | 0.2510" | -0.0005" to 0.0005" | 6" | 1/4" | Round | Aluminum, Brass, Bronze, Iron, Plastic, Steel | 0000000 | 000000 |
5/16" | 0.3135" | -0.0005" to 0.0005" | 7 3/4" | 5/16" | Round | Aluminum, Brass, Bronze, Iron, Plastic, Steel | 0000000 | 000000 |
3/8" | 0.3760" | -0.0005" to 0.0005" | 8 1/2" | 3/8" | Round | Aluminum, Brass, Bronze, Iron, Plastic, Steel | 0000000 | 000000 |
7/16" | 0.4385" | -0.0005" to 0.0005" | 10 1/2" | 7/16" | Round | Aluminum, Brass, Bronze, Iron, Plastic, Steel | 0000000 | 000000 |
1/2" | 0.5010" | -0.0005" to 0.0005" | 11 7/8" | 1/2" | Round | Aluminum, Brass, Bronze, Iron, Plastic, Steel | 0000000 | 000000 |
5/8" | 0.6265" | -0.0005" to 0.0005" | 16 1/4" | 5/8" | Hex | Aluminum, Brass, Bronze, Iron, Plastic, Steel | 0000000 | 000000 |
11/16" | 0.6890" | -0.0005" to 0.0005" | 16 3/4" | 11/16" | Hex | Aluminum, Brass, Bronze, Iron, Plastic, Steel | 0000000 | 000000 |
3/4" | 0.7515" | -0.0005" to 0.0005" | 17 1/4" | 3/4" | Hex | Aluminum, Brass, Bronze, Iron, Plastic, Steel | 0000000 | 000000 |
1" | 1.0025" | -0.0005" to 0.0005" | 19 3/4" | 1" | Hex | Aluminum, Brass, Bronze, Iron, Plastic, Steel | 0000000 | 000000 |
5mm | 5.0051mm | -0.0102mm to 0.0127mm | 5 3/8" | 5mm | Round | Aluminum, Brass, Bronze, Iron, Plastic, Steel | 0000000 | 000000 |
6mm | 6.0096mm | -0.0102mm to 0.0127mm | 6" | 6mm | Round | Aluminum, Brass, Bronze, Iron, Plastic, Steel | 0000000 | 000000 |
8mm | 8.0112mm | -0.0102mm to 0.0127mm | 7 3/4" | 8mm | Round | Aluminum, Brass, Bronze, Iron, Plastic, Steel | 0000000 | 000000 |
10mm | 10.0101mm | -0.0102mm to 0.0127mm | 9 5/8" | 10mm | Round | Aluminum, Brass, Bronze, Iron, Plastic, Steel | 0000000 | 000000 |
12mm | 12.0091mm | -0.0102mm to 0.0127mm | 11 7/8" | 12mm | Round | Aluminum, Brass, Bronze, Iron, Plastic, Steel | 0000000 | 000000 |