Thunderbolt 48-89-2321 Jobber Length Drill, 3/8 in Dia x 5 in OAL, Cobalt, 3-5/8 in Flute

About the Thunderbolt 48-89-2321 Jobber Length Drill, 3/8 in Dia x 5 in OAL, Cobalt, 3-5/8 in Flute

The Milwaukee 48-89-2321 model 3/8" Thunderbolt Cobalt Drill Bit is a part of the Cobalt Drill Bits Series. This cobalt bit is made for extreme durability and long-life. It gives you a thicker core than a standard drill bit, and its specially made parabolic flute form clears chips and debris fast.