The Yost RIA-4 4" compact bench vise with 360-degree swivel base mounts to a workbench to provide light-duty clamping action. The 360-degree swivel base adjusts the direction of the jaws for proper placement. Hand-tightening the two lock knobs on the base secures its position. The hardened steel jaws are grooved for enhanced grip and can be replaced when worn. The jaws draw closer together or farther apart by turning the vise handle clockwise or counterclockwise. The vise body is made of class 30 cast gray iron for durability and strength, and it has a fully enclosed screw assembly to protect it against dust and debris. The base has four 5/16"-diameter holes for mounting hardware (not included).

• 30,000 PSI gray iron castings for increased durability
• Totally enclosed screw assembly
• Replaceable hardened steel grooved top jaws
• 360° swivel base with (2) lockdowns
• Swivel base equipped (4) 5/16 Inch diameter mounting holes

Overall dimensions*5.16 x 12.13 x 5.43 inches (H x W x D)
*H is height, the vertical distance from the lowest to highest point; W is width, the horizontal distance from left to right; D is depth, the horizontal distance from front to back.

Yost manufactures a wide range of vises, including bench-mount, woodworking, and drill-press styles. The company, founded in 1908, is headquartered in Pottstown, PA.