I have been in industrial Maintenance for over 30 years, I do work in a machine shop sometimes and I am always tapping parts.If I can't use a drill these are my next grab tool for taps and I have used them on screw and bolt extractors. Works 10 times better then t handle holders, and gets into tight spots.My other Maintenance workers are always borrowing these from me.Would buy again if needed.The only problem that I have with them is tool retention. If I am tapping into a deep spot I will tape the tool into the socket or the tap/extractor will fall out
Rating: [5 of 5 Stars!]