quickly open the hole is sharper
high wear resistance
universal drill handle
3 Pcs Set Step Drill Bits
1. 4mm 6mm 8mm 10mm 12mm, total 5 Steps
2. 3-12mm
3. 4-20mm
Package: 3 pcs pack in a bag
Material: HSS
quickly open the hole is sharper
high wear resistance
universal drill handle
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