This is a 12 mm ratcheting spanner from the Draper Tools Group D range (DR31009), designed to engage and turn 12 mm metric hex fasteners where a continuous ratcheting action speeds work in confined spaces. The tool combines a ratchet-operated box end with a slim contact profile to access nuts and bolts that are difficult to reach with conventional spanners.

The spanner is manufactured from chrome vanadium (Cr-V) alloy steel and is heat-treated and tempered to provide durable toughness and resistance to fatigue. The finish is bright chrome plating to inhibit corrosion and simplify cleaning. The box end is a 12-point (double-hex) style that locates quickly on metric heads, and the ratchet mechanism provides a fine engagement angle (typical 72-tooth ratchets giving approximately a 5° swing), allowing incremental movement where access is limited. The head is slightly offset to clear adjacent obstructions and the open/opposite face (where fitted) conforms to recognised dimensional standards; the spanner is produced to meet the applicable DIN/ISO/BS spanner dimensional standards (for example DIN 3113 / ISO 3318 and BS 4320 family tolerances for metric spanners).

Typical applications include automotive maintenance and repair, mechanical and plant maintenance, assembly lines and installation work, HVAC servicing and light engineering. The combination of a ratchet box end and slim profile makes it particularly useful for tight engine bays, machinery housings and assembly jigs where repetitive removal or tightening is required without having to lift the tool from the nut on each stroke.

Key benefits are its corrosion-resistant chrome finish, the strength and wear resistance of chrome vanadium construction, and the time-saving ratchet action which reduces cycle time. The 12-point box reduces corner rounding on hex fasteners, and the spanner is fully compatible with standard ISO metric fasteners and nuts.

Duchy Fasteners stocks this Draper DR31009 12 mm ratcheting spanner individually and as part of metric spanner sets; sizes and pack options are available to suit workshop and trade requirements. Contact us for current stock levels and pack formats.