The 450mm Dual Action Clamp is a hand-operated bar clamp designed to hold and compress workpieces during gluing, assembly and light fabrication. Its primary use is in woodworking and general workshop applications where one-handed rapid positioning and a controlled final clamping force are required.

Construction comprises a hardened steel bar with a zinc-plated finish and a powder-coated main body to resist corrosion in workshop environments. The fixed jaw is integral to the bar and the sliding jaw is machined from heat-treated carbon steel (approximate grade C45 / EN 10083), while the pressure spindle is a hardened steel screw with a trapezoidal (Acme-style) thread to give rapid travel combined with positive load-carrying capability. The spindle terminates in a spring-loaded swivelling pressure pad with a protective polymer cap to prevent marking of timber and finished surfaces. The clamp is hand-driven via a moulded PVC handle; no external drive is required.

Manufacture follows common DIN/ISO/BS tolerancing for hand clamps and machine elements, with materials and thread form selected to match typical workshop standards for durability and safe working load. The dual action mechanism delivers a quick-release sliding action for fast jaw positioning along the 450mm bar followed by the screw spindle for fine, controlled clamping pressure, making it suitable wherever accurate alignment and steady pressure are needed.

Typical applications include cabinetry and furniture assembly, panel and biscuit joinery, jigs and fixtures, light metal fabrication, automotive trim work and general DIY. Trades and industries that use this clamp range from carpentry and joinery to maintenance workshops and prototyping labs where repeatable clamping and surface protection are important.

Key benefits include good corrosion resistance from the plated and coated surfaces, a robust heat-treated screw and jaws for dependable clamping force, rapid one-handed operation via the dual action mechanism, and compatibility with standard clamp accessories such as protective jaw pads and extension bars. Duchy Fasteners stocks the Draper Tools 450mm Dual Action Clamp in single units and multipacks, and carries a broad range of bar clamp lengths from 100mm up to 600mm to suit different projects and workshop requirements.