Description of High Speed Woodworking Center Countersink - 3mm to 10mm
✅【Material specifications】SNUSIM The center drill bit is made of high quality High-Speed Steel. Strong hardness and good durability. 7pcs(3mm,4mm,5mm,6mm,7mm,8mm,10mm)with Hex Key. ✅【Widely suitable】It is suitable for mold steel, carbon steel, cast iron, stainless steel, thread mold, a material with high hardness, wear-resistance and toughness for precise positioning before drilling, so as to facilitate the efficiency of subsequent drilling. ✅ 【Easy to use】The center drill bit is so easy to use. Just need a drill, no other tools need, there are three small steps, burnish, flip tool and extract, then you can easily use. ✅【SPIRAL FLUTE】Spiral groove helps clear chips and debris away from the bit, decreasing friction and heat for a faster, cooler drilling process. The precision ground surface is corrosion resistance to achieve better using effects and prolong the working life. ✅【QUALITY GUARANTEE】 We have carried out strict quality inspection and control on each drill bit before leaving the factory, and the pass rate is above 99.99%. If you have any usage or quality problems, please feel free to contact us through Amazon.