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Dayton 3 inch machine vise fixed base metallic finish

Dayton

Dayton 31LZ64 3 in machine vise fixed base tool storage

SKU CH-NZJ4-AKMR3

A 3-inch machine vise with fixed base and Uni-Grip mechanism maintains constant overall length while delivering 450 lb clamping force

  • 3 in jaw width fits standard workpieces
  • 2 3/4 in opening accommodates thick stock
  • 450 lb clamping force holds parts securely
  • Unigrip mechanism keeps overall length constant
  • Precision ground surfaces within .002 in tolerance

3 in Machine Vise Fixed Base

The Dayton 31LZ64 is a compact machine vise with a 3 in jaw width and a 2 3/4 in jaw opening. It mounts on a fixed base and provides a clamping force of 450 lb for general workshop holding tasks.

Unigrip Mechanism Benefit

The Unigrip mechanism keeps the overall open length of the vise constant regardless of jaw position. This allows the vise to be positioned anywhere on the machine table without recalculating clearances when the jaws move.

Precision Alignment and Durability

Jaw deflection is held to 0.010 in at 33 lb while jaw plate and bed flatness are maintained within 0.002 in. The fixed base design gives a stable 9 in overall length and 2-1/2 in height for repeatable setups.

Highlights

  • 3 in jaw width fits standard workpieces
  • 2 3/4 in opening accommodates thick stock
  • 450 lb clamping force holds parts securely
  • Unigrip mechanism keeps overall length constant
  • Precision ground surfaces within .002 in tolerance

Specifications

BrandDAYTON

Questions about this item

How often will the Uni-Grip mechanism need lubrication or adjustment?

The Uni-Grip mechanism keeps the overall open length constant regardless of jaw position, so it does not require periodic adjustment; standard light machine oil on the screw threads is sufficient for long-term operation.

What is the first limit reached during sustained clamping at the rated 450 lb force?

At 33 lb of applied force the jaw deflects .010 in and the jaw plate and bed each deflect .002 in, so elastic deflection is the limiting factor before the mechanism yields.

Does the vise generate noticeable heat or noise when clamped all day?

The fixed-base steel construction has no moving parts that produce heat or noise; once tightened to 450 lb clamping force the vise remains silent and at ambient temperature.

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