11/16" x 5/16" Shank |Mag-Bit 770.1116| Electrician’s Power Bits | 3 Piece size-4 Engineered to perform under the

Engineered to perform under the toughest operating environments

The aluminum panel isn't just a flat strip

Phosphate coating protects the fastener from corrosion although it is recommended that they are used for interior use only and not in treated lumber

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

Aluminum Oxide Premium Grade

11/16" x 5/16" Shank |Mag-Bit 770.1116| Electrician’s Power Bits | 3 Piece size-4 Engineered to perform under the8 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.