5Pcs Set Drill Head Triangle Drill Twist Multifunctional Drill Bit Triangle Tool

Ultimate Drill Bit is made of industrial-grade 6542 HSS 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. Ideal for everyday drilling on multiple materials including steel alloy tile concrete brick glass plastic wood and more. FEATURES: Premium material 6542 HSS Carbide and durable alloy with reinforced head prevent bit cracking and provide longer life. Wide usage Strong carbide tip with spear pointed design can easily drill through various materials like tile concrete brick glass plastic wood etc. Easy chip removal W-type slot design provides low resistance resulting in faster & smoother drilling and easier chip removal. Anti-slip shrank Triangular shank allows drill bits to be held tightly and prevents slip. 4 Different sizes 6mm(1/4 ) 8mm(5/16 ) 10mm(3/8 ) 12mm(1/2 ).