Description
- 【Drill Bit Sets 】Drill Bits for Metal are made from M35 cobalt steel, with molybdenum and cobalt added to creates a hardened alloy, measuring Rockwell hardness up to 67, extremely heat resistant; for much faster cutting and extra longer life span, with up to twelve times when compared with an average HSS drill bit.
- 【Metal Drill Bits】the 135° fast cutting point is self-centring for fast penetration with less pressure and will not slide out of position when drilling.
- 【Drill Bit Sets 】Metal drills are suitable for wood, plastic, stainless steel, thin metal plates (steel and aluminum) and body plates, low carbon steel and are very effective in these projects, not suitable for concrete/masonry.
- 【Drill Bit Set】our drill bits are extremely heat-resistant compared to ordinary drills.5% cobalt HSS M35 extends tool life.Straight shanks for firm clamping and precise centring.Suitable for use in standard drill chucks and regular round chucks.
- 【Drill Bits Set 】There are 13PCS in one box of Hss Drill Bits, the sizes include: 1.5mm,2mm,2.5mm,3mm,3.2mm,3.5mm,4mm,4.5mm,4.8mm,5mm,5.5mm,6mm，6.5mm.
