Klein-Unibit® Metric Step-Drill Bits
- Same rugged, high-speed steel as English size bits.
- Drill round holes in most metals up to 5 mm thick (No.59025 up to 11 mm), as well as plastic and wood.
- No center punching or pilot hole drilling required on most sizes.
- Sizes to fit 6 mm, 8mm, 10 mm and 13 mm chucks on portable electric drills and drill presses.
- Metric hole-size diameters are permanently laser-etched in the flute areas.
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Unlike standard-point twist drills with two cutting surfaces, the single-flute design of the Klein-Unibit drill bit eliminates skidding. Single cutting-edge design assures penetration of softer materials at
the proper speed, stops "hogging-in", helps to eliminate chatter and vibration. Hole is de-burred automatically by the next succeeding size. You can feel and see each step as the bit penetrates. Hole-size diameters are permanently laser-etched
in the flute area of each bit, and offer quick and positive identification of each hole-size step to help eliminate user errors. |
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Klein-Unibit drill bits are real time savers in electrical work. Rugged, high-speed steel drills steel, brass, aluminum, and copper sheet with ease. No center punch or pilot holes required for most sizes. |
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| 59021 |
$21.00 |
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| No. of Hole Sizes |
Diameters |
Pilot Hole |
Drill Size |
Depth of
Each Step |
| 9 in 1mm steps |
4mm to 12mm |
No |
1/4" & larger |
5mm |
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| 59022 |
$41.25 |
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| No. of Hole Sizes |
Diameters |
Pilot Hole |
Drill Size |
Depth of
Each Step |
| 6 in 2mm steps |
14mm to 24mm |
12mm or larger |
1/2" & larger |
5mm |
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| 59023 |
$35.75 |
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| No. of Hole Sizes |
Diameters |
Pilot Hole |
Drill Size |
Depth of
Each Step |
| 7 in 2mm steps |
6mm to 18mm |
No |
3/8" & larger |
5mm |
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| 59024 |
$79.50 |
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| No. of Hole Sizes |
Diameters |
Pilot Hole |
Drill Size |
Depth of
Each Step |
| 8 in 2mm steps |
20mm to 34mm |
18mm or larger |
1/2" & larger |
5mm |
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| 59025 |
$21.00 |
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| No. of Hole Sizes |
Diameters |
Pilot Hole |
Drill Size |
Depth of
Each Step |
| 5 in 2mm steps |
4mm to 12mm |
No |
1/4" & larger |
11mm |
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| 59026 |
$44.00 |
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| No. of Hole Sizes |
Diameters |
Pilot Hole |
Drill Size |
Depth of
Each Step |
| 10 in 2mm steps |
4mm to 22mm |
No |
3/8" & larger |
5mm |
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| 59027 |
$79.50 |
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| No. of Hole Sizes |
Diameters |
Pilot Hole |
Drill Size |
Depth of
Each Step |
| 13 in 2-3mm steps |
5mm to 35mm |
No |
1/2" & larger |
3.5mm |
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