Overview Reviews Product Description Use to replace worn parts on a mechanics vise.Jaws are made from hardened steel.Jaw plates are fully machined on all load-bearing surfaces.4-inch plates fit the #3 mechanics vise.Irwin tools record replacement jaw plates and screws for no.3 mechanic's vise (t3d). Irwin Tools Catalog Product Videos Custom Field Manufacturing country CN Product Reviews Write a Review Write a Review × Irwin Record® Replacement Jaw Plates & Screws (For 3) T3D Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Review Subject * Comments *