Century Drill And Tool Masonry Sonic Drill Bit 7/8″ Cutting Length 4″ Overall Length 6″ Shank 1/2″ Size:7/8″ X 4″ X 6″ X 1/2″ Interchangeable for 2-3/8' or 2-3/4'

Interchangeable for 2-3/8' or 2-3/4' backsets

silicone seats and stainless steel spring

High carbon steel blades are riveted to rugged steel yokes

lter every 6-9 months and whenever worn or damaged

Century Drill And Tool Masonry Sonic Drill Bit 7/8″ Cutting Length 4″ Overall Length 6″ Shank 1/2″ Size:7/8″ X 4″ X 6″ X 1/2″ Interchangeable for 2-3/8' or 2-3/4'Industrial tungsten carbide cutting tip resists wear and breakage for maximum durability Fully ground heat treated body handles the shock and stress of cutting concrete, stone, tile, granite and other masonry materials Advanced flute design clears debris faster keeping the cutting tip cooler extending drill life