SPKLINE Drill Bit Set - High Speed Steel Cobalt 10 Pcs 1mm 1.5mm 2mm 2.5mm 3mm

10 pcs mini size cobalt drill bit set for micro hole drilling into various material it contains 2 pcs of each 1mm364 15mm116 2mm564 25mm332 3mm18 diameter drill bit Very tough drill bit for heavy duty work drilling into stainless steel lightgauge metal highcarbon steel aluminum and ally steel cast iron abrasive alloy metal other hard metal and hardened steel 4 times life time than normal metal drill bit when drilling into PCB board plastic wood jewelry sheet metal and normal steel M35 Cobalt drill bits are made from industrial grade High Speed Steel with 5 cobalt alloy that is heat and abrasionresistant 135degree splitpoint tip starts drilling immediately with less force and eliminates walking or skating across the work surface Straight shank fits with electric and cordless power drill and rotary drill Drill bits are packed in a Plastic Bag