Diablo SPEEDemon 1/4 In. x 12 In. Red Granite Carbide Rotary Hammer Drill Bit Louisville The zinc-plated square wire-spring inside

The zinc-plated square wire-spring inside instantly adjusts to the shape and size of the splice upon insertion ensuring a long-lasting connection that resists corrosion and exceeds UL standards for dielectric strength and wire pullout force

The Thunderbolt web features a thicker core than a standard drill bit to provide ultimate strength and protect against side-load breakage

fits doors 1-3/4" - 2" thick and 28" - 36" wide

Leversets are reversible for left or right hand

1-1/4" x 2-3/8"

Diablo SPEEDemon 1/4 In. x 12 In. Red Granite Carbide Rotary Hammer Drill Bit Louisville The zinc-plated square wire-spring insideDiablo made carbide tip withstands impact & high heat applications for superior life versus standard masonry hammer drill bits Multi ground Grip Point Tip delivers stability & accuracy required for fast, precise holes Hi performance brazing & hardening process extends life of carbide tip & increases productivity Optimized flute design removes dust faster, keeping the carbide tip cooler for ultimate strength & durability Impact Strong increases shank