Fein Tools Carbide Triangle Grout Blade - 001 Blade. For coarse grinding of filler material, tile adhesive, concrete, stone, & wood. Triangular shape, 3-1/8" (80 mm) edge length, perforated, can also be used with dust extraction. Starlock mounting system.    Made in Poland.,For California Residents:,   WARNING: Cancer & Reproductive Harm - www.P65Warnings.ca.gov,WARNING: Drilling, sawing, sanding or machining wood products can expose you to wood dust, a substance known to the State of California to cause cancer. Avoid inhaling wood dust or use a dust mask or other safeguards for personal protection. For more information go to www.P65Warnings.ca.gov/wood Fein Carbide Triangular Grout Blade "Starlock"