Threading tools are checked for accuracy for the 60 Degree angle by using a centre gauge
M 10 x 1.25 is a fine pitch thread
M 10 is a coarse pitch thread
Same tool is used for cutting external and internal threads
less than that for the plain turning operation
more than that for the plain turning operation
equal to that for plain turning operation
None of the above
Inserted tool bits are more advantageous while cutting threads
Before cutting internal threads, the hole should be chamfered
When internal thread cutting is done in a blind hole, a recess should be provided
When cutting internal threads, the core diameter may be equal to the size of external threads
Threads can be cut on a lathe by using simple gear train arrangement only
The 127 teeth gear is used as driven gear for cutting metric threads on a lathe having lead screw in TPI
The 63 teeth gear is used as a driver for cutting British threads on a lathe having metric lead screw
The teeth of the driver and driven are based on the pitch of thread to be cut and the pitch of thread on the lead screw
Idler gear
Change gear
Translating gear
Compound gear