Product Description This tough 4-inch Milling Machine Vise with swivel base is used for milling and other demanding machine applications. An economical and robust vise for a variety of milling and other demanding machining applications. Hardened moveable jaw plates are square to 0.0015 inch and an extra large opening allow for a multitude of workpiece options. With a jaw deflection of .002 at 4,000 pounds, you will know that your workpiece will not move, leading to costly mistakes or defects. This standard milling vise includes replaceable smooth jaw plates made of hardened and ground tool steel and a large cast iron crank handle. The base and bed are parallel to 0.002 inch. The included removeable swivel base is indicated in 1° increments and can be fastened in place with two bolts. There is a 1/16 inch keyway in both the vise base as well as the swivel base for easy mounting. This USA made Palmgren quick release vise comes backed with a Lifetime Guarantee, so you can focus on the job at hand. Base motor housing and end-shields made from cast iron cast aluminum and steel depending on the model.CSA NRT/C certified OSHA compliant.Dust collection port and hoses on all models except 82061.Large cast aluminum tool rests tilt for angle grinding.Includes tool rest spark arrestors eyeshields one 36 grit and one 60 grit grinding wheel an 6 ft. 3-conductor power cord. From the Manufacturer Base motor housing and end-shields made from cast iron cast aluminum and steel depending on the model.CSA NRT/C certified OSHA compliant.Dust collection port and hoses on all models except 82061.Large cast aluminum tool rests tilt for angle grinding.Includes tool rest spark arrestors eyeshields one 36 grit and one 60 grit grinding wheel an 6 ft. 3-conductor power cord.