Two-piece rectangular pipe dies (fig. 5-38)
dies are held in diestocks, as shown in figure 5-39. One
are available to cut American Standard Pipe threads.
type of die stock has three pointed screws that will hold
round dies of any construction, although it is made
They are held in ordinary or ratchet-type diestocks (fig.
specifically for open adjusting-type dies.
5-40). The jaws of the dies are adjusted by setscrews.
Two-piece collet dies (fig. 5-38) are used with a
An adjustable guide keeps the pipe in alignment with
collet cap (fig. 5-39) and collet guide. The die halves
respect to the dies. The smooth jaws of the guide are
are placed in the cap slot and held in place by the guide
adjusted by a cam plate; a thumbscrew locks the jaws
that screws into the underside of the cap. The die is
firmly in the desired position.
adjusted by setscrews at both ends of the internal slot.
Threading sets are available in many different com-
This type of adjustable die is issued in various sizes to
binations of taps and dies, together with diestocks, tap
cover the cutting range of American Standard Coarse,
wrenches, guides, and necessary screwdrivers and
Fine, and special form threads. Diestocks to hold the
wrenches to loosen and tighten adjusting screws and
dies come in three different sizes.
Figure 5-39.--Diestocks, diecollet, and tap wrenches.
Figure 5-40.--Adjustable die guide and ratchet diestocks.