6 Pack 1/2" Premium High Performance "TiN" Coated High Speed Steel Drill Bits 5/16" and 3/8" high speed

5/16" and 3/8" high speed steel

This High Performance end mill and AGT's introductory price is a "no brainer" This end mill is "ZrN' coated which gives this tool hardness and lubricity "like no other"

1/2" Length Of Cut

3-3/4" Over All Length

Brownells Compatible 80% AR-15 Lower Receiver Jig Tooling Kit

6 Pack 1/2" Premium High Performance "TiN" Coated High Speed Steel Drill Bits 5/16" and 3/8" high speedWhat is "TiN" Coating? Learn More! 6 Pack 1 4" "TiN" Coated High Speed Steel Drill Bit, 135 Deg Split Point, HSS, The Best High Performance drill bit for AR15 AR10 . 308 Lower Receiver Jigs. Drill bits were designed specifically for drilling aluminum.