Irwin 8ZR Record Heavy Duty 8″ Mechanics Vise

Built for daily service in shops and on benches, the IRWIN 8ZR Record Heavy Duty 8″ Mechanics Vise delivers steady clamping force with long-term reliability. A close-grained grey iron body and sliding jaw are cast and then fully machined on all working surfaces for smooth, repeatable action. The machined-steel mainscrew uses a rolled twin-start acme thread that resists wear and drives the jaw quickly with less effort. For safety, a fused-steel handle is designed to bend before the vise can be overstressed, and a built-in safety stop prevents the slide from separating from the body. Replaceable hardened steel jaws grip cleanly and can be changed when worn, while an internal S.G. (spheroidal graphite) iron nut carries the load and keeps the mainscrew aligned.

In metal fabrication, maintenance, automotive, and educational settings, this mechanics vise provides the consistent hold needed for cutting, filing, drilling, tapping, and assembly. A lip on the rear of the body helps guide filings and debris away from the slide to reduce contamination and keep the action smooth over time. The 8″ jaw width suits general repair and fabrication tasks where a sturdy, serviceable bench vise is required.

Irwin Record Heavy Duty 8″ Mechanics Vise At a Glance

• Close-Grained Grey Iron Body: Rigid casting helps maintain alignment under load.
• Hardened, Replaceable Jaws: Extend service life and restore grip with simple replacements.
• Twin-Start Acme Thread: Faster, smoother screw advance with improved wear resistance.
• Fused-Steel Handle: Bends to signal overload before damage occurs.
• Internal S.G. Iron Nut: Carries load and keeps the mainscrew centered for accurate clamping.
• Safety Stop: Prevents the slide from separating during wide openings.
• Fully Machined Surfaces: Smooth operation on all load-bearing and friction areas.
• Debris-Shedding Rear Lip: Guides filings away from the slide to protect the mechanism.

Markets

• Metal Fabrication: Steady holding for cutting, filing, layout, and light forming.
• Automotive Repair: Secures brackets, fasteners, and components for service work.
• Maintenance & Facilities: Reliable bench vise for everyday repairs and part prep.
• Construction Shops & Millwork: Holds stock for drilling, sanding, and assembly tasks.
• Municipal & Utility Workshops: Durable, serviceable vise for fleet and facility upkeep.
• Trade Schools & Technical Programs: Demonstrates safe workholding methods to students.

Professionals in these markets choose the 8ZR because it focuses on what matters in a shop vise: consistent clamping, smooth travel, and replaceable wear parts. The acme thread drives quickly to the work, and the S.G. iron nut keeps alignment tight for accurate filing or drilling. In facilities and municipal shops, the fused steel handle provides an extra measure of safety by bending before the casting is overstressed. In classrooms, the safety stop and fully machined surfaces help instructors teach proper setup and workholding technique. For automotive and fabrication tasks, the hardened jaws maintain grip on steel, aluminum, and plastics, and can be swapped as they wear to keep the bench vise in service for years.

Irwin 8ZR Record Heavy Duty 8″ Mechanics Vise Features

• CLOSE GRAINED GREY IRON BODY & SLIDING JAW – Cast then machined on all friction surfaces for a smooth, reliable action.
• SAFETY STOP – Prevents the slide from being separated from the body.
• HARDENED STEEL JAWS – Extend the life of the jaws and are replaceable.
• UNBREAKABLE S.G. IRON NUT – Can be replaced when worn.
• FUSED STEEL HANDLE – Will bend before the vice can be overstressed.
• TWIN-START ACME COLD ROLLED THREAD – For faster and smoother operation.
• IRWIN vise grip has replaceable hardened steel jaws
• Mechanics vise is fully machined on all load-bearing surfaces
• Lip on back body of the vise guides filings and fragments away from the slide
• Internal SG nut takes load and secures and aligns the mainscrew; can be replaced when worn
• Machined-steel mainscrew with rolled 2-start acme thread for wear-resistance and smooth operation

Irwin 8ZR Record Heavy Duty 8″ Mechanics Vise Specifications

• Model Number: 8ZR
• UPC: 734442000969
• Product Type: Mechanics (bench) vise
• Jaw Width: 8 in.
• Body Material: Close-grained grey iron
• Sliding Jaw: Close-grained grey iron, fully machined
• Mainscrew: Machined steel with rolled twin-start acme thread
• Nut Material: S.G. (spheroidal graphite) iron; replaceable
• Jaws: Hardened steel; replaceable
• Handle: Fused steel (bends under overload)
• Safety Stop: Yes (prevents slide separation)
• Machined Surfaces: All load-bearing/friction surfaces
• Debris Management: Rear lip guides filings away from slide

Why Professionals Choose the Irwin Record Heavy Duty 8″ Mechanics Vise

Shops pick the IRWIN 8ZR when they want a heavy-duty mechanics vise that holds work securely and stays serviceable. The close-grained grey iron casting resists deflection, while the acme thread and fully machined surfaces keep the screw turning smoothly day after day. Replaceable hardened jaws and a replaceable S.G. iron nut mean common wear points can be renewed, keeping the bench vise in use rather than replaced. For safety, the fused steel handle signals overload before damage, and the safety stop helps prevent slide separation. For metalwork, automotive repair, and general maintenance, this 8″ mechanics vise provides reliable workholding for filing, drilling, tapping, and assembly without complicating the setup.