Reed Chain Vise, 1/2 to 8 inChain Vises Permit The Holding of Irregular Shapes and Provide an Excellent Cost-For-Capacity Value. Reed Chain Vises are The Fastest to Use: Two Turns to Open or Close. These Chain Vises are The Strongest Available and Hardened Tool Steel Jaws are Triple-Faced For Rotations Instead of Replacements, Providing Two Free Sets of Jaws. to Make Conversion to a Reed Vise Simpler, Reed Has Added The Cv4Rhp to The Line. This Model Features Mounting Holes to Fit Spots Already Drilled For a Ridgid Vise.