Crescent Jobox 4-Inch Heavy-Duty Caster Wheel Set (1-320990)

Industrial Grade Heavy Duty Phenolic Caster Wheel Set for Mobile Jobsite Chests

The Crescent JOBOX 1-320990 4-Inch Heavy-Duty Caster Set is a professional-grade storage accessory kit engineered to add fluid structural mobility to on-site tool chests, vaults, and jobsite storage enclosures. Fabricated with a robust galvanized steel housing and premium maintenance-free phenolic wheels, this four-piece hardware package installs directly onto standard EZ-loader skid bolsters. Configured with an industrial tracking layout featuring two fixed rigid casters and two 360-degree directional swivel casters, this 15.0-pound mobile upgrade system matches a standardized 3-inch by 3-inch bolt hole pattern, solving the problem of flat tires, rough surface transport resistance, and unanchored toolbox movement across debris-laden commercial work environments.

Best Used For:

• Jobsite Box and Chest Mobility: Converting stationary steel field gang boxes and Site-Vault storage systems into smooth-rolling mobile industrial assets.
• All-Surface Workshop Navigation: Moving fully loaded heavy equipment enclosures securely over concrete shop floors, outdoor asphalt, and construction debris.
• EZ-Loader Skid System Integration: Staging mobile units efficiently using the low-profile 5.5-inch overall height clearance designed to clear standard forklift bolsters.

Key Performance & Safety Features

• Flat-Free Phenolic Compound: Solid core phenolic resin wheels reject sharp metal shards, puncture risks, and long-term compression flat-spotting.
• All-Surface Rubber Traction Layer: Integrated all-purpose tread wrapping provides continuous tactile friction and smooth, shock-absorbing transport control.
• Galvanized Corrosion Resistance: Premium heavy-gauge galvanized steel framing blocks oxidative breakdown and outdoor rust formation.
• Directional Steering Tracking: Balanced pair matching uses two swivel and two rigid wheels to align tight cornering ability with stable straight-line guidance.
• Standardized Mechanical Mounting: Factory pre-punched 3-inch by 3-inch bolt dimensions permit rapid structural attachment with minimal hand tools.

What's Included

• (2) 4" Fixed Heavy-Duty Casters
• (2) 4" Swivel Heavy-Duty Casters

Technical Specifications

Pro-Tip: When maneuvering heavy storage boxes across threshold tracks or floor joints, align the tool chest frame to push from the rigid tracking end. Directing force this way forces the swivel casters to follow naturally, maximizing path control and stabilizing the physical load layout.