How to use a Plasterers Rasp
The Rasp is a tool that enables you to make fine adjustments to the size of you cut plasterboard.
This hand tool has an abrasive surface that when rubbed along the edge of plaster board will enable you to reduce the size of the board a millimetre at a time.
The Rasp can also be used to smooth or straighten any knife cuts that were not as perfect as you had hoped.
When using the rasp always pull in from an exposed corner otherwise you will "curve" the corner