IRWIN Tools VISE-GRIP Pliers, Conduit and Locknut Reaming, 8-Inch (1773629) IRWIN VISE-GRIP pliers tighten and loosen 1/2-inch and 3/4-inch EMT or 1/2-inch rigid locknuts Can ream and smooth inside and outside of conduit Ideal for liquid tight fittings and caps Lifetime Guarantee 1/4-inch jaw thickness Tightens 1/2-Inch and 3/4-Inch EMT or 1/2-Inch rigid locknuts Reams and smoothes both inside and outside of conduit Ideal for liquid tight fittings and caps Meets or exceeds ANSI specifications Lifetime guarantee