A knife vise I recently completed. Chrome moly tubing, and a .375 thick tab. We drilled and welded a top bottom/top piece inside the tupe (around the screw head) so the clamp would move up and down with the screw action. I used a SS bar, square on one end, tapered on the other for as a backer plate for the knives. Pool balls for handles which have been epoxied to the screws. Works great.
I will be adding a piece of leather to the encased clamp, and a piece of leather to the SS bar as well to aid in holding and preventing damage to the knives.
(http://i492.photobucket.com/albums/rr287/bjjanse/null_zps8d3ec480.jpg) (http://s492.photobucket.com/user/bjjanse/media/null_zps8d3ec480.jpg.html)
(http://i492.photobucket.com/albums/rr287/bjjanse/null_zps77421681.jpg) (http://s492.photobucket.com/user/bjjanse/media/null_zps77421681.jpg.html)
(http://i492.photobucket.com/albums/rr287/bjjanse/null_zpsd73cc2e7.jpg) (http://s492.photobucket.com/user/bjjanse/media/null_zpsd73cc2e7.jpg.html)
(http://i492.photobucket.com/albums/rr287/bjjanse/null_zps548a5730.jpg) (http://s492.photobucket.com/user/bjjanse/media/null_zps548a5730.jpg.html)
(http://i492.photobucket.com/albums/rr287/bjjanse/null_zps3bad84a2.jpg) (http://s492.photobucket.com/user/bjjanse/media/null_zps3bad84a2.jpg.html)
Nice tool and nice work on it!
Steve
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Potomac Forge
W.F. Moran Jr. Museum & Foundation