11/16" x 5/16" Shank |Mag-Bit 770.1116| Electrician’s Power Bits | 3 Piece size-4 NAS 907B 135-degree split point

NAS 907B 135-degree split point drills on contact eliminating walking along with requiring less force or push

A30R Premium Grade

and another 1/4” in order for the tip to protrude from the bottom of the shield after expansion

Aluminum Oxide Premium Grade

The aluminum panel isn't just a flat strip

11/16" x 5/16" Shank |Mag-Bit 770.1116| Electrician’s Power Bits | 3 Piece size-4 NAS 907B 135-degree split point8 1 2" OAL x 5 1 2" Twist Length For electricians, pipe fitters and plumbers. Double flute construction Self feeding screw point with spur for clean boring Packed in a reusable storage tube Designed to cut through three 2" x 4"s between other studs with a right angle drill. Traditional double twist for fast clearance of chips and two cutting edges. Single spur for clean cut holes. A self feed screw point for fast, effortless boring.