Giới thiệu Bộ Mũi Khoan Thẳng Rãnh HSS Phủ Gỗ / Kim Loại Chuyên Dụng
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Product description
This compact set Step Drill Bits which includes one 4-12mm, one 4-20mm, and one 3-12mm. Two-fluted design can provide faster, smoother cutting.
Note:
Before starting drilling and screwing, the Automatic Center Punch can be used to mark hole locations. It delivers an automatic, high-impact, spring-loaded strike when pressed against wood, metal, and plastic surfaces. An adjustable cap regulates striking force. It features a heat-treated alloy steel punch with a sharp precision tip and a corrosion-resistant brass body with non-slip knurled grip.