TM 9-3419-234-14&P
SECTION V
SECTION IV
THE RX TYPE
THE T TYPE
Fig. 38
Fig. 36
a. The 40RX Head is recommended for generating
a. The type T Heat Treated Threading Heads are
threads on large diameters when thread length is
available for producing short lengths of straight and
comparatively short and of fine pitch. The 40RX Heat
tapered threads where constant thread length is essential.
Treated Head employs six chasers and has essentially the
They can also be supplied for production pipe threading
same features as the standard "R" type heads.
and for use on automatic and hand operated nipple
machines. All T type Heads are internally tripped.
b. Specifications for the type "RX" Heads can be found
on page 37.
b. For pipe and nipple threading, the threading reaming
and chamfering operations are performed simultaneously
by this type head equipped with a reamer and reamer
attachment. The reamer also acts as a stop bar for the
internal trip mechanism which provides constant thread
length regardless of difference in nipple length or gripping
position.
c. Specifications for the type T Heads can be found on
page 33.
Fig. 39
Fig. 37
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