Stanley Proto J197 Proto 11-Inch Safety Wire Twister Reversible Pliers Reversible safety wire pliers provide right and left twist capability often eliminating the need for a second plier Meet SAE Aerospace Standard AS 567 Twister Requirements Provides all of the features of standard Proto Safety Wire Pliers J196 designed for wire sizes .020-inch - .041-inch J197 designed for wire sizes .020-inch - .060-inch