ul listed 3 hour fire rated
Alkalinity increaser raises total alkalinity and buffers the water against changes in pH
Natural rubber squeegee resists cracking
Ultra Hardened Cutting Edge For Up To Four Times Longer Life Than Standard Blades
Extra long flat bit
Hole Saw, Carbide-Tipped, 2-11/16-In. Push Button Door Latch ul listed 3 hour fireDiablo, 2 11 16", carbide tipped hole saw, cuts both wood & metal, use on wood, nail embedded wood, plastic, aluminum, metal, cast iron & stainless steel, delivers longer cutting life than bi metal for faster cutting performance & increased productivity, 2 3 8" cutting depth for 40 percent deeper holes in single pass & increased productivity, variable tooth design for faster cuts, snap lock plus mandrel system for quick & easy changes with no down