plane iron

Loosen the plane-iron cap and screw it down at right angles to the plane iron, also reverse the tool rest as shown in the sketch.

A plane iron (p. 140) is often made to answer the same purpose.

This helps to counteract the result of any tendency to tip the plane to one side or any inaccuracy in setting the plane-iron.

The natural tendency of the plane-iron is to split the wood in front of the iron in such cases (Fig. 628).

But look out for your fingers when you do this, for a plane-iron in this position has a great appetite for finger-tips.