AKSDS0301 Step drill bits are mainly used to cut holes in metal. They are also used to drill wood, acrylic, and other plastics, but one limiting factor of the step drill bit is that they are only suitable for cutting thin materials, such as sheet metal.
3 pcs step drill bit set
1pcs 4-12mm,1mm/step,Shank
diameter:6mm
1pcs 4-20mm,2mm/step,Shank
diameter:8mm
1pcs 4-32mm,2mm/step,Shank
diameter:10mm
Material:HSS