Special characteristics · Suitable for scraping wood, metal, and concrete · Carbide blades stay sharp much longer and last 50 times longer compared to conventional steel scrapers · The blades are precision ground and slightly convex to prevent scratches on the workpiece · 50 mm and 65 mm blades are double-sided, the triangular blade can be used on 3 sides · 442: Replacement blade 50mm for scrapers 650 and 440 · 451: Replacement blade 65mm for scrapers 650, 665 and 450 · 449: Replacement triangular blade 25mm for scrapers 625 and 448 Technical data Quantity 1 Weight (grams) 6