3M SandBlaster Clean-N-Strip Disc is designed to fit 4.5 inch and 5 inch angle grinders Its fast cutting action and clog resistance with medium coarse grit removes flaws, flatten grains, smoothens wood and makes tough stripping easy This disc can be attached to the quick loading 3M adapter (sold separately) without using a wrench It is great for removing rust, paint and other coatings The open web design helps prevent surface distortion or gouging and leaves a long lasting, clean and smooth surface finish