Century Drill And Tool Masonry Sonic Drill Bit 7/8″ Cutting Length 10″ Overall Length 12″ Shank 1/2″ Crimpers do not use duct tape

do not use duct tape

remains soft indefinitely

Simple left

This duct is made from 3 ply aluminum foil laminate with a maximum operating temperature of 250°F

Hardened boron alloy shackle for maximum cut resistance

Century Drill And Tool Masonry Sonic Drill Bit 7/8″ Cutting Length 10″ Overall Length 12″ Shank 1/2″ Crimpers do not use duct tapeIndustrial 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