To clean them again for use, then becomes an easy matter.

The best method of removing rust and tarnish is to polish the tools on a power buffing wheel on which has been rubbed some tripoli.

They may then be polished on a clean buffer without tripoli.
_The Lockers._ In order to maintain good order in the shop, an almost indispensable part of the equipment is a set of lockers for holding the unfinished work of pupils.

An inexpensive outfit may consist simply of sets of shelves, say 5" apart, 12" deep, and 18" long, Fig.
241.

Ordinary spring-roller curtains may be hung in front of each set of shelves to conceal and protect the contents.