Drillpro 3Pcs 4-32/20/12mm Nitrided Black Spiral Grooved Step Drill Bit with Automatic Center Pin Punch
$43
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Description
3Pcs 4-32/20/12mm Nitrided Black Spiral Grooved Step Drill Bits with Automatic Center Pin Punch
Specification
Material:High Speed Steel
Surface Treatment:Nitriding
Color:Black
Size
4-12mm:5 Steps (4mm, 6mm, 8mm, 10mm, 12mm)
4-20mm:9 Steps (4mm, 6mm, 8mm, 10mm, 12mm, 14mm, 16mm, 18mm, 20mm)
4-32mm:15 Steps (4mm, 6mm, 8mm, 10mm, 12mm, 14mm, 16mm, 18mm, 20mm, 22mm, 24mm, 26mm, 28mm, 30mm, 32mm)
Features
1. High strength and hardness, good wear-resistant.
2. The unique step structure, the drill can drill a variety of sizes of the aperture. You can deburring, chamfering, punching elliptical hole.
3. The hardness of the workpiece below the use of HRC 25 below, such as iron, aluminum, PVC board, insulation board, wood.
4. Suitable for installation in the pistol drill and bench drill. Limiting the thickness of 5mm or less!.
Package Included
3Pcs x Step Drill Bit
1Pc x Center Punch
| Weight | 0.291 kg |
|---|
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