Metric M42 8% Cobalt Twist Drill Bits Set for Stainless Steel and Hard Metal (1mm-10mm/19pcs)

Description

The STROTON metalworking and multipurpose drill bit sets offers premium m42 8% cobalt steel ,68-70 hrc (rockwell hardness scale) ,usually give the best heat,wear and chip resistance and long tool life. 3 Steps Design for Cutting through Stainless Steel,Hard Metals,Aluminum,Plastic. This Cobalt Drill Bit is Typically Capable of Running Three to Five Times Faster.Despite the Higher Price,the Cost Per Hole When Using Cobalt Drill Bit Will be the Lowest,Since It Can Produce So Many More Holes.