with a socket, box, open-end, or any wrench that will
fit. Rethreading dies are available in sets of 6, 10, 14,
and 28 assorted sizes in a case.
Round split adjustable dies (fig. 1-55) are called
"Burton" dies and can be used in either hand diestocks
or machine holders. The adjustment in the screw
adjusting type is made by a fine-pitch screw, which
forces the sides of the die apart or allows them to spring
together. The adjustment in the open adjusting type is
made by means of three screws in the holder, one for
expanding and two for compressing the dies.
Two piece collet dies (fig. 1-55) are used with a
collet cap (fig. 1-56) and collet guide. The die halves
are placed in the cap slot and are held in place by the
TWO-PIECE RECTANGULAR PIPE DIE
Figure 1-55.Types of adjustable dies.
STRAIGHT HANDLED TAP WRENCH
T-HANDLE TAP WRENCH
THREE SCREW DIESTOCK
SINGLE SCREW DIESTOCK
Figure 1-56.Diestocks, diecollet, and tap wrenches.