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Decimal Size Equivalent Decimal Size Equivalent |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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Drill Bit Decimal Size Equivalents
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About Drill Bits
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Drill Bits for Spot Welds
Three drill points allow these bits to separate spot-welded panels without damaging the bottom panel.
Drill bits with flat on shank are used in spot-weld drills, such as Spitznagel.
For technical drawings and 3-D models, click on a part number.
Shank | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Size | Decimal Size Equivalent | Overall Lg. | Max. Drilling Dp. | Type | Size | Point Style | Features | Specifications Met | For Use On | Each | |
Inch | |||||||||||
Uncoated High-Speed Steel | |||||||||||
| 1/4" | 0.25" | 1 1/2" | 0.04" | Round | 1/4" | Brad | Flat on Shank | NAS907 Type J | Steel, Iron, Aluminum, Brass, Bronze, Plastic | 000000 | 000000 |
| 1/4" | 0.25" | 1 9/16" | 0.04" | Round | 1/4" | Brad | Flat on Shank | NAS907 Type J | Steel, Iron, Aluminum, Brass, Bronze, Plastic | 000000 | 00000 |
| 5/16" | 0.3125" | 1 1/2" | 0.04" | Round | 5/16" | Brad | Flat on Shank | NAS907 Type J | Steel, Iron, Aluminum, Brass, Bronze, Plastic | 000000 | 00000 |
| 5/16" | 0.3125" | 1 9/16" | 0.04" | Round | 5/16" | Brad | Flat on Shank | NAS907 Type J | Steel, Iron, Aluminum, Brass, Bronze, Plastic | 000000 | 00000 |
| 5/16" | 0.3125" | 1 11/16" | 0.04" | Round | 5/16" | Brad | Flat on Shank | NAS907 Type J | Steel, Iron, Aluminum, Brass, Bronze, Plastic | 000000 | 00000 |
| 5/16" | 0.3125" | 2 1/4" | 0.07" | Round | 5/16" | Brad | __ | NAS907 Type J | Steel, Iron, Aluminum, Brass, Bronze, Plastic | 000000 | 00000 |
| 13/32" | 0.406" | 2 1/4" | 0.07" | Round | 13/32" | Brad | __ | NAS907 Type J | Steel, Iron, Aluminum, Brass, Bronze, Plastic | 000000 | 00000 |
Reversible Drill Bits for Sheet Metal
When one end becomes worn, reverse the bit to use the other end. These bits have short flutes and a sturdy construction which prevent snagging that deforms sheet metal and thin-wall tubing. They can be used in both hand-held drilling and machine-tool applications. The split point keeps the bit centered without a pilot hole.
For technical drawings and 3-D models, click on a part number.
Shank | Each | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Size | Decimal Size Equivalent | Overall Lg. | Max. Drilling Dp. | Type | Size | Point Style | For Use On | 1-11 | 12-Up | |
Inch | ||||||||||
Black-Oxide High-Speed Steel | ||||||||||
| 7/64" | 0.1094" | 2" | 0.5" | Round | 1/8" | Split | Steel, Iron, Stainless Steel | 0000000 | 00000 | 00000 |
| 1/8" | 0.125" | 2" | 0.56" | Round | 1/8" | Split | Steel, Iron, Stainless Steel | 0000000 | 0000 | 0000 |
| 9/64" | 0.1406" | 2" | 0.56" | Round | 1/8" | Split | Steel, Iron, Stainless Steel | 0000000 | 0000 | 0000 |
| 5/32" | 0.1563" | 2 1/8" | 0.56" | Round | 3/16" | Split | Steel, Iron, Stainless Steel | 0000000 | 0000 | 0000 |
| 3/16" | 0.1875" | 2 3/8" | 0.56" | Round | 3/16" | Split | Steel, Iron, Stainless Steel | 0000000 | 0000 | 0000 |
| 7/32" | 0.2188" | 2 5/8" | 0.69" | Round | 1/4" | Split | Steel, Iron, Stainless Steel | 0000000 | 0000 | 0000 |
| 1/4" | 0.25" | 2 5/8" | 0.75" | Round | 1/4" | Split | Steel, Iron, Stainless Steel | 0000000 | 0000 | 0000 |
Wire Gauge | ||||||||||
Black-Oxide High-Speed Steel | ||||||||||
| 30 ga | 0.1285" | 2" | 0.56" | Round | 0.1" | Split | Steel, Iron, Stainless Steel | 0000000 | 0000 | 0000 |
| 20 ga | 0.161" | 2 1/8" | 0.56" | Round | 0.2" | Split | Steel, Iron, Stainless Steel | 0000000 | 0000 | 0000 |
| 11 ga | 0.191" | 2 3/8" | 0.56" | Round | 0.2" | Split | Steel, Iron, Stainless Steel | 0000000 | 0000 | 0000 |
Drill Bits for Sheet Metal
These bits have short flutes and a sturdy construction which prevent snagging that deforms sheet metal and thin-wall tubing. They can be used in both hand-held drilling and machine-tool applications. The split point keeps the bit centered without a pilot hole.
For technical drawings and 3-D models, click on a part number.
Shank | Each | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Size | Decimal Size Equivalent | Overall Lg. | Max. Drilling Dp. | Type | Size | Point Style | For Use On | 1-11 | 12-Up | |
Inch | ||||||||||
Black-Oxide High-Speed Steel | ||||||||||
| 7/64" | 0.1094" | 3" | 0.63" | Round | 7/64" | Split | Steel, Iron, Stainless Steel | 0000000 | 00000 | 00000 |
| 1/8" | 0.125" | 2" | 0.63" | Round | 1/8" | Split | Steel, Iron, Stainless Steel | 0000000 | 0000 | 0000 |
| 9/64" | 0.1406" | 2" | 0.63" | Round | 9/64" | Split | Steel, Iron, Stainless Steel | 0000000 | 0000 | 0000 |
| 5/32" | 0.1563" | 2" | 0.75" | Round | 5/32" | Split | Steel, Iron, Stainless Steel | 0000000 | 0000 | 0000 |
| 3/16" | 0.1875" | 2" | 0.75" | Round | 3/16" | Split | Steel, Iron, Stainless Steel | 0000000 | 0000 | 0000 |
| 1/4" | 0.25" | 2 1/2" | 0.75" | Round | 1/4" | Split | Steel, Iron, Stainless Steel | 0000000 | 0000 | 0000 |
Wire Gauge | ||||||||||
Black-Oxide High-Speed Steel | ||||||||||
| 30 ga | 0.1285" | 2" | 0.63" | Round | 0.1285" | Split | Steel, Iron, Stainless Steel | 0000000 | 0000 | 0000 |