Bits Working Drill Hole 6-12mm Ceramic Punching Multifunctional Glass Ultimate Tools & Home Improvement Tile Drill Bits Ceramic

Wide usage size:(4-12mm）：4/8/10/12mm material Triangular shank allows drill bits to be held tightly and slip. -slip shrank Strong carbide tip with spear pointed design can easily drill through various materials like tile concrete brick glass plastic wood etc. Easy chip removal Material: Hard Alloy Top Corner: 135° Diameter: 3-12mm Universal 4 x Multifunctional Drill for everyday drilling on multiple materials including steel alloy tile concrete brick glass plastic wood and more. Multifunctional Drill Bits is made of industrial-grade 6542 Carbide and durable alloy to perform excellent high-speed drilling. With W-type slot design it allows easier chip removal and reduces resistance resulting in smoother drilling. 6542 Carbide and durable alloy with reinforced head bit cracking and provide longer life. Can be installed in any standard electric drills. W-type slot design provides low resistance resulting in faster & smoother drilling and easier chip removal.