From the Manufacturer
The strong, ductile iron main castings are guaranteed against defects in workmanship and materials. The steel jaw faces are made from hardened tool steel and have a deep knurled pattern to ensure positive gripping. The swivel base rotates 360 degrees and a gear lock bolt ensures positive locking to prevent slippage.
Product Description
The Wilton Columbian Machinist Bench Vise features steel jaw faces made from hardened tool steel with a deep knurled pattern to ensure positive gripping. U.S.A. Jaw Width (in.): 3, Jaw Capacity (in.): 4, Replaceable Jaw: Yes, serrated, Pipe Jaw: No, Double Look-downs: Yes, 360deg Swivel Base: Yes