New from Steel Vision Tools comes these new groundbreaking drill bit sets. One of the very first to hit the market of its kind is the stepped tip drill bit design. Each drill bit has a small step bit tip. Each fluted step tip is in proportion to the bit size. Even on round, curved or uneven surfaces the stepped cutter bits will glide through metal without a pilot hole and drastically reduce walking. The Tungsten Cobalt hi-moly alloy allows for easier penetration and precise cuts. Outlasts split point bits 4-1. Never needs pilot hole. Mechanics length makes them less prone to breakage. M35 Tungsten-Cobalt hi-moly alloy. Includes all of these sizes. Stepped Tip Drill Bit. 63209 3/16 Stepped Tip Drill Bit.