Chassis hole peener Nov 26, 2021 4:46:26 GMT -7 via mobile comet likes this Quote Select PostDeselect PostLink to PostMemberGive GiftBack to Top Post by dynomike on Nov 26, 2021 4:46:26 GMT -7 I just received a scale engineering chassis hole peener. It comes with two screws. 1 ball end and 1 cup end. What is the cup end for? I must say the machine work is out standing.