2pc Rotary Wheel Cutter Replacement Blades 1-3/4" 45mm - Carpet, Quilting Hard to find replacement blades for rotary wheel cutters High-carbon steel precision ground to razor sharpness (caution - blades are extremely sharp!) 1-3/4" (45mm) diameter blade with triangular lock arbor; fits most rotary cutters with 45mm blade Rotary cutters are excellent choice for cutting textiles, carpet, wallpaper & quilting Set of 2 blades in plastic protective case; rotary cutter not included - available separately