Brownells Gunsmith Bench Vise Jaw, Polyurethane Grooved

The Brownells Gunsmith Bench Vise Jaw, Polyurethane Grooved, is a specialized jaw insert designed to transform your Brownells Gunsmith's Bench Vise into a precision tool for working with cylindrical and rod-shaped parts. These soft polyurethane jaw inserts slip over the factory steel jaws of your vise and are held securely in place using powerful rare-earth magnets built into the lightweight aluminum backing. The magnetic design also prevents the magnets from magnetizing any steel parts you're clamping, so you can work with ferrous materials without magnetic interference.

The grooved face is engineered specifically for gunsmithing, gunsmithing work, and general shop use where you need to grip round workpieces—barrels, rods, bolts, pins, and similar items—without marring or scratching the finish. Six horizontal grooves hold cylindrical workpieces securely, while a deeper center groove anchors smaller diameter parts like bolts and pins during filing, fitting, or finishing operations. The polyurethane material is soft enough to grip delicate gun parts safely, yet flexible and durable enough to resist permanent deformation and return to its original shape after you release the clamp pressure.

Unlike metal jaws, the polyurethane face won't harden with age or use, keeping your vise performing consistently for years. The soft nature of the material means it's naturally much gentler than steel, so your workpieces stay unmarred even under firm clamping force. If you work regularly with round or cylindrical gun parts—receiver extensions, trigger guard pins, barrel work, or custom rod and bolt projects—these grooved jaws save setup time and protect your finished surfaces.

Key Features

• Six horizontal grooves designed for secure, non-marring grip on cylindrical workpieces
• Deeper center groove anchors smaller-diameter bolts, rods, and pins
• Soft polyurethane face protects gun parts, barrels, and finished surfaces
• Flexible material resists permanent deformation and returns to original shape
• Won't harden with age or repeated use
• Aluminum-backed with rare-earth magnets for secure, tool-free attachment
• Magnetic design prevents magnetization of steel workpieces

Specifications

Frequently Asked Questions

Will these jaw inserts fit my Brownells Gunsmith's Bench Vise?

Yes. These polyurethane grooved jaw inserts are designed to slip over the factory jaws of the Brownells Gunsmith's Bench Vise and are held in place by rare-earth magnets.

Will the magnets magnetize the gun parts I'm clamping?

No. The aluminum backing of the jaw inserts prevents the magnets from magnetizing any steel parts held in the jaws, so you can safely work with ferrous materials without worry.

Can I use these grooved jaws on delicate gun parts without scratching them?

Yes. The soft polyurethane face is designed to grip cylindrical and round workpieces securely while protecting them from marring or scratching. The material is flexible and returns to its original shape after clamping, and it won't harden with age.

What types of parts are these grooved jaws best for?

These jaws excel at holding round and cylindrical workpieces such as barrels, rods, bolts, pins, and similar parts. The six horizontal grooves and deeper center groove keep your workpieces secure and positioned correctly during filing, fitting, or finishing.