Master Mechanic, 4 Pack, 1-3/8" Precision Cut Oscillating Blade, Universal Fit, Can Be Used On Wood & Soft Plastics, Compatible With The Following Quick Change Oscillating Tools: Black & Decker, Porter Cable & Rockwell, Fits Most Oscillating Tool Brands: GTV, Master Mechanic, Dewalt, Performax, Tool Shop, Bluehawk, Chicago Electric, Genesis, Makita, Mastercraft, Milwaukee, Ridgid, Rockwell, Ryobi, Skil, Bosch & Dremel When Used With The High Grip Washer Included.