Gibraltar 428-1083 Soft Vise Jaw 4 Inch Aluminum Flat

Product Description

The GIBRALTAR 428-1083 is a soft, flat, fixed vise jaw designed as a bolt-on replacement or upgrade jaw for 4-inch bench vises. Machined from aluminum, this jaw measures 4 inches wide, 1.5 inches high, and 0.75 inches thick. The soft aluminum construction protects finished, coated, or soft-metal workpieces from marring and surface damage during clamping. It installs on the fixed jaw position and secures via standard bolt-on attachment. Machinists, toolmakers, and maintenance technicians use soft jaws like this when holding parts that cannot tolerate the bite of hardened steel vise jaws.

This jaw is suited for use in machine shops, fabrication environments, and maintenance facilities where workholding precision and surface protection are priorities. The flat jaw profile provides full, even contact across the workpiece face, making it appropriate for clamping stock, fixtures, and components that require a secure but non-damaging grip. It is sized specifically for 4-inch vises and fits the fixed jaw position.

Key Features

• Soft aluminum construction protects workpiece surfaces from clamping damage
• Flat jaw profile provides uniform contact across the clamping face
• Fixed jaw design for stable, non-adjustable jaw position
• Bolt-on attachment method for secure, repeatable installation
• Sized for 4-inch vises at 4 inches wide, 1.5 inches high, and 0.75 inches thick

Compatibility

Designed for use with 4-inch bench vises as a bolt-on fixed jaw replacement. Verify bolt hole pattern and jaw dimensions against your existing vise before installation.

Installation Notes

Installation is performed by machinists or maintenance technicians using standard hand tools. Remove the existing jaw and verify the bolt hole pattern matches before mounting the new jaw. Secure all fasteners fully before applying clamping load to the vise. Do not use this aluminum jaw for heavy-duty impact or striking operations, as soft jaw materials are not rated for that type of force.