Triangle Drill Bits Multifunctional Twist Punching Drill Bit Head Ceramic Glass Hole Hand Working Sets

Package Included: 1* 5Pcs(6/6/8/10/12mm) Drill Bits Color: orange + silver Material: Carbide Type: Multifunctional Drill Bit Kit Diameters 6/6/8/10/12mm. Feature: Widely Used ----Sharpened cut edges for multi-purpose drlling on dry wall,bricks,tiles,wood,aluminium and metal sheet... Efficient Design ---- Triangle shank handle is designed for preventing slipping and allows drill bit to be held tightly and stably in power drill. U type slot design makes perfect chip removal ability with overall sandblasting treatment. No broken edges, no tremors, small incision resistance, fast hole speed, easy chip removal. Material & Dimension ---- High quality drill bit set made of tungsten carbide that prevents bit cracking and provides a longer life, sturdy and durable. 2 flute design,for better drilling dust removal. Warm Tips ---- The bit is resistant to high temperature at about 1000°C. However long session of work over 1000°C may cause the head to burn out. Therefore, adding water is required when drilling on high hardness material. These drill bits can be used in charging drill, hand drill, bench drill etc. DO NOT use impact mode of drill or hammers.