5. Place the tool against the object at a 90 degree angle. Avoid small irregularities
on the object which will break easily and cause either idle strokes or an
incorrect working angle.
6. Start the hammer.
7. Stop the hammer quickly. Do not allow the hammer to fall down and make idle
strokes when an object breaks. Frequent idle strokes have a deteriorating effect
on the hammer. If the hammer falls through, the housing wears out more
quickly.