Page 123 - CITS - Fitter Trade Pactical - Volume - 2
P. 123
FITTER - CITS
Remove the metal chips if any, from the blind hole by turning it upside down and slightly tapping it on a wooden
surface.
Do not clear the chips by blowing as it can cause injury to your eyes.
• Screw a matching nut on the taper tap to act as a depth stop.
Thread the blind hole until the nut touches the plate surface.
• Remove the chips from the hole frequently , using a flattened and bent wire.
• Finish tapping the blind hole with intermediate and bottoming tap. Set the nut to control the depth of the thread.
108
CITS : CG & M - Fitter - Exercise 35
