Precision Grinding Vise by Starrett
No. 581
This vise can be used for many operations, but it is extremely useful for accurate grinding, having the following features:
- Hardened steel
- Ground flat, square, and parallel within .0002" (0.005mm)
- Jaw pressure on workpiece is forward and downward for repeatable positioning and maximum holding power
- Jaw opening 4" (100mm), jaw depth 1-1/4" (32mm)
- The movable jaw is slightly narrower than the base, enabling the vise to be used on its side
- A 1/4-20 tapped hole is provided in each side of the solid jaw to allow the use of a stop for repetitive operations
- A "T" handle wrench is provided for tightening the movable jaw
- Four drilled and counterbored holes for 5/16 bolts in the base of the vise for bolting to a sine plate or the bed of a machine tool
Angle blocks are available on special order. For attaching special jaw plates, two holes are drilled in both the solid and movable jaws.
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