The WEN 4 in. Cast Iron Drill Press Vise clinches woods, metals, plastics and more, holding workpieces firmly in place for safe and accurate drilling. The heavy cast iron base along with the 4 onboard mounting slots provides stability to the vise during operation. The 4 in. jaws open up a total of 4 in. with a 1 in. throat depth to tightly grip boards and metals of a variety of shapes. Never worry about your workpieces budging again with the WEN 4 in. Cast Iron Drill Press Vise. Remember WEN.