27 THREADS PER INCH
It is possible to NUT 27 threads per inch on any Lathe by procuring an additional gear. 9" and Light Ten Models B & C
Lathes and 10"-1"Collet Lathes with wide range gear box are already equipped to nut 27 threads. For other Lathes see
SIZE AND TYPE OF LATHE
DOUBLE TUMIBLER GEAR BOXES
9" & Lt. 10AA, Model A, Double Tumbler
10" (11/16 or 1" Col. Cap.) Double Tumbler
13" Double tumbler .
14'", 16" 16-24" & 2H Double Tumbler
For Gear Box Code No. Q.C.G. 103...
For Gear Box Code No. D. T.';. 104...
SINGLE TUMBLER GEAR BOXES
10" (11/16 or 1" Col. Cap.) Single Tumbler
13" Single Tumbler .
145", 16', 16-24" & 2H Single Tumbler
SEE REVERSE SIDE FOR SET-UP CHART
IMPORTANT. When ordering you must specify "Gear is to be used to cut 27 threads per inch." Also state serial number
of your lathe wH1ch is stamped on flat way of bed at tailstock end and gear box code number stamped on face of
tumbler guide bar attached to bottom of gear box. This informaT1on enables us to doublecheck and to determine if
correct gear is being ordered.