Description
Professional industrial quality
Wearing Resistance, Heart Resistance
M2, Hight Speed Steel, Hardness HRC 62
Drilling accurate center holes, or starting holes for a larger sized drill bit
In the package:
1.0mm x 4mm x 31mm (Drill x Body x Length)
1.6mm x 4mm x 35mm
2.0mm x 5mm x 40mm
2.5mm x 6mm x 45mm
3.15mm x 8mm x 50mm
4mm x 10mm x 56mm
5mm x 12mm x 63mm
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