Vise Grips Made In USA for sale | In Stock | eBay- locking vise grip pliers definition and example chart ,Vintage Locking Pliers Grip All Vise Grip Made In USA ,10WR,7WR,5WR,6R lot of 4 $35.00 $8.50 shipping Vintage Petersen Dewitt Vise Grip 6LN Needle Nose Locking Pliers Made In U.S.A. $40.00 0 bids Free shipping Ending Jun 29 at 7:43PM PDT 4d 5h ...Hand Tool Ergonomics - Tool Design : OSH Answers19/6/2021· Ideally, a worker should be able to operate a tool with one hand. The weight of the tool may depend on the use: 2.3 kg (5 lb) if the hand tool will be used away from the body or above shoulder height. 0.4kg (1 lb) for precision tools to allow for good control. Tools above these recommendations should be supported with a counterbalance. Figure 1.