Gibraltar 68001G 52 Piece Step Block Clamp Set

Product Description

The GIBRALTAR 68001G is a 52-piece step block and clamp set designed for workholding and fixturing applications on milling machines, drill presses, and other machine tool setups. The set includes step blocks, clamps, studs, nuts, and associated hardware sized to a 12mm T-slot with M10x1.5 stud thread. The 19mm T-slot nut width and available stud lengths of 80, 110, 125, 150, 175, and 200mm provide the range needed to secure a wide variety of workpiece heights and configurations. At 18.5 pounds, the set delivers substantial, shop-ready hardware suitable for production and maintenance machining environments.

This set is intended for use in machine shop environments where workpieces must be rigidly secured to a machine table during milling, drilling, or boring operations. The 25mm step block height increments and the range of stud lengths allow machinists and tool and die technicians to accommodate varying workpiece geometries without sourcing individual components. It is well suited for job shops, maintenance machining departments, and trade training facilities where a complete, self-contained fixturing kit is preferred over piecemeal assembly.

Key Features

• 52-piece complete set — includes step blocks, clamps, studs, nuts, and hardware in a single kit
• 25mm step block sizing with six stud lengths: 80, 110, 125, 150, 175, and 200mm
• 12mm T-slot compatibility with M10x1.5 stud thread for standard machine table fitment
• 19mm T-slot nut width for secure table engagement
• 18.5-pound kit weight reflects solid, production-grade steel construction

Compatibility

Designed for machine tables with 12mm T-slots accepting M10x1.5 threaded studs and 19mm T-slot nuts, consistent with standard milling machine and drill press table configurations in that T-slot class.

Installation Notes

Installation is performed by qualified machinists or tooling technicians familiar with workholding setup. Before securing or adjusting any clamp arrangement, confirm the machine spindle is off and the table is at a safe working position. Clamps should be positioned so the clamp toe contacts the workpiece at or slightly below the step block contact height to maximize clamping force and minimize workpiece lift. Always verify stud thread engagement depth is sufficient before initiating a cut.