You should not use a sharpened knife or scissors for cutting sandpaper. You only blunted their blades. Easier and more effective to cut the sandpaper with an awl or other sharp object on the underside of the abrasive surface and tear the paper along the planned lines.
Recommend to read
RESTORING THE NOZZLE
The reasons of breakage of the nozzle on the Microdrive, a great many. And to do so more quickly, a new chiseled mikrodetal is not always possible. But, it turns out, engaged in the...
GET
Drawers in modern furniture always attract children's attention. The result can wait no longer — the contents is on the floor. If handle is removable to make, don't have to waste time...