Bessey 4" Drill Press Vise is a standard duty vise with a clamping strength of 100 lb. It has a 1.0" throat depth and a 4.0" jaw width. It is made from high quality 30,000 PSI cast iron for many years of service. Integrated mounting slots in base for t-slot tables. Grooved jaw provides a firm grip on the work piece. Durable powder coated finish.