Planing and sanding
Learning activity
Audio 12 (mp3 |6|KB)Sandpaper comes in a variety of 'grit' sizes, using numbers to refer to the coarseness of the abrading material.
Coarser grits are used when you need to remove a lot of material quickly. Finer grits are used when you're finishing off the surface in preparation for a paint or clear coating.
Do you know what some of the common grit sizes are for different grades of sandpaper? Write down a typical coarse, medium and fine grit size that might be used for sanding a timber benchtop.