I haven't actually handled one of the pull through reamers but am guessing thay are machined at the back of the cutter same as a headspace gage.
Pretty laborious as you cut one turn, wipe and relube the reamer and repeat until the bolt sets down into the locking lugs with a bit of firm thumb pressure.
The stripped bolt stays in the guideways but you don't have to keep it against the cutter as you make each turn.
Pretty laborious as you cut one turn, wipe and relube the reamer and repeat until the bolt sets down into the locking lugs with a bit of firm thumb pressure.
The stripped bolt stays in the guideways but you don't have to keep it against the cutter as you make each turn.