Washer-Cutter.] The _washer-cutter_, Fig.

138, is useful not only for cutting out washers but also for cutting holes in thin wood.

The size is adjustable.
3.

CHOPPING TOOLS.
The primitive celt, which was hardly more than a wedge, has been differentiated into three modern hand tools, the _chisel_, see above, p.

53, the _ax_, Fig.