taco eater :
Ben Whittle from Minot , ND United States
I don't own this nor have I used this particular puller, but you MUST put a nut on the threads flush with the end of the shaft to prevent mushrooming the end. Also, just tighten it to where there is pressure on the puller and gently but swiftly give the large "push" bolt a tap with a hammer to pop it.
I believe this was the problem with review below.
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1 taco eaters like this review
Looks decent
March 15, 2014
taco eater :
EDWARD MANHART from OMAHA, NE United States
This broke a rito crank. The coned shape on the end split a big chunk out of the threads. Whereas the other brand puller has a flatter area to push on the crank.
Just a heads up!!! 
Looks decent