KENDO 15 PCS Cobalt Drill Bit Set(1/16"-3/8"), M35 High Speed Steel, 135 Degree Tip, Twist Jobber Length Drill Bits Set for Hard Metal, Stainless Steel, Cast Iron and Wood with Plastic Storage Ca - HSS-15PCS

• Higher quality materials:Heavy-duty twist drill bit made of 5% Cobalt alloyed high speed steel. Bronze steam surface treatment provides a combination of hardness and toughness for wear resistance. More professional performance: Self-centring 135-degree split point tip helps to reduce thrust and aids an easier penetration.Tips are professionally hardened and polished for more accurate,fast drilling and faster removal of chips and particles. More comprehensive applications:The cobalt drill bit set can be used effectively on most soft and hard materials, such as stainless steel, cast iron, high temperature alloy, titanium alloy, plastics and woods. Size&Packaging: Including 2pc 1/16",1pc 5/64",2pc 3/32",1pc 7/64",2pc 1/8",1pc 9/64",1pc 5/32",1pc 3/16",1pc 7/32",1pc 1/4",1pc 5/16",1pc 3/8",Packed in a plastic box with size index for easier storage. Provide long-term after-sales service: If you are not satisfied with our product for any reason, we offer 100% refund or replacement.