T31990 33-Piece M35 Cobalt Silver & Deming Drill Bit Set W/ Aluminum Case

Silver and Deming drill bits are large size drill bits with reduced shanks.

You’ll want the 33-piece Silver & Deming drill bit set for when the hole you need to drill is larger than the diameter of the chuck capacity of your drill.

These bits are M35 steel with 5% cobalt and can be used at much higher speeds than HSS drill bits.