Drillpro 51Pcs 1-6mm M35 Cobalt Drill Bit Set HSS-Co Jobber Length Twist Drill Bits with Metal Case for Stainless Steel

Descriptions Drillpro M35 Cobalt Drill Bit Set HSS Co Jobber Length Twist Drill Bits with Metal Case for Stainless Steel Wood Metal DrillingSpecification BrandDrillpro Product nameDrillpro M35 Cobalt Twist Drill Bits SetMaterialHSS Co M35 CobaltSize optional 41PCS 6 10mm 6 0 6 1 6 2 6 3 6 4 6 5 6 6 6 7 6 8 6 9 7 0 7 1 7 2 7 3 7 4 7 5 7 6 7 7 7 8 7 9 8 0 8 1 8 2 8 3 8 4 8 5 8 6 8 7 8 8 8 9 9 0 9 1 9 2 9 3 9 4 9 5 9 6 9 7 9 8 9 9 10 0mm51PCS 1 6mm 1 0 1 1 1 2 1 3 1 4 1 5 1 6 1 7 1 8 1 9 2 0 2 1 2 2 2 3 2 4 2 5 2 6 2 7 2 8 2 9 3 0 3 1 3 2 3 3 3 4 3 5 3 6 3 7 3 8 3 9 4 0 4 1 4 2 4 3 4 4 4 5 4 6 4 7 4 8 4 9 5 0 5 1 5 2 5 3 5 4 5 5 5 6 5 7 5 8 5 9 6 0mmShank TypeStraight ShankQuantity41 51PCS Metal CaseNote Cobalt drill bits require slow RPM when drilling metals The suggested RPM is only for your reference It may vary from different materials You can start from a lower RPM and adjust it higher slowly Once the bit can get into the workpiece the adjustment should be stopped Features ● M35 cobalt Quality M2 HSS with 5 cobalt added for higher hardness and heat resitance The Rockwell hardness is up to 67 It can cut faster and has a long life up to 12 times compared with the average HSS bit ● Self centering The guiding separation point of 135° rapid cutting is self centering which can penetrate quickly with less pressure The straight handle can be firmly