Zirconium coating reduces wear for a longer tool life
Premium High Speed Steel
Designed to cut through thin hard metals
12 step cuts holes from 3/16" to 7/8", 1/8" step depth
3/8" shanks fit all popular drills
Step Drill Bits are for cutting ferrous and non-ferrous metals, plastics and wood up to 1/8" thick. Its double flute design reduces chatter and deburrs holes.