the end of the cutting stroke

the middle of the cutting stroke

beginning of the cutting stroke

None of the above

0.8 mm

1.2 mm

1.3 mm

1.4 mm

For changing the direction of feed, pawl is to be rotated 180 Degree.

When shaping 'T' slot, the function of clapper box is not used.

Pawl mechanism of a shaper is a unit, which regulates the speed of rpm.

When cutting 'T' slots in a shaper, clapper block need not to be lifted.

lift the tool during cutting stroke

lift the tool during return stroke

lift the tool in the middle of the stroke

avoid overhanging of tool

Base

Ram

Saddle

Clapper box