Quote Originally Posted by Isambard View Post
I presume it works on the principle that if you stop the feed down, or retract the feed, the tap will continue tapping down until the drive disengages...
When taping I would never engage a power down feed for one the feed rate will never match the TPI or the MPT of the threads .
This device is more of a feedback clutch once the torque reaches a certain level t is going to try and skip the operator would have to be aware of how much torque feed back is required to force him to let up on the down feed before breaking the tap. User awareness is the key factor here, what works for him may not work all that well for some of the rest of us.
A true tapomatic would reverse direction when lifting the feed handle