Sandpaper coarseness is determined by the size of grit on the paper—ranging from extra-coarse to extra-fine. Using sandpaper that's too coarse could damage the material you're working with.

Do this with each grit as you move through the progression ... chucking the drill bit into the tool and rotate it on the grinding wheel to sharpen. A 1-in. Belt Sander is a Versatile Sharpening ...

Fitting them to a pair of Newmen aero wheels, I didn’t even need a tyre lever and managed to inflate them with ... Therefore, slightly heavier and tougher tyres with added puncture protection are best ...