4-32mm Metric 6% Cobalt Step Drill Bit for Stainless Steel and Hard Metal (15 Steps) - Cobalt-15s-(4-32mm)

Product Description

• Premium M35 6% cobalt steel ,66-69 HRC (Rockwell Hardness Scale), gives the best heat, wear and chip resistance and long tool life.
• Grinding the cutting edge three times, with the high HRC and heat resistance of the material, design for cutting through stainless steel, iron plate, aluminum, ducts, wood, PVC and plastic. 
• 4-32mm, 15 Steps (4mm,6mm,8mm,10mm,12mm,14mm,16mm,18mm,20mm,22mm,24mm,26mm,28mm,30mm,32mm)