The Stanley FatMax FMMT13033-0 is a 10mm combination wrench with both an open jaw and a 12-point ring end, covering the two most common ways to turn a fastener in a single tool. The anti-slip surface treatment on the open jaw grips the flat of the nut or bolt head more positively than a standard polished jaw, reducing the risk of rounding fastener corners under load.

Chrome vanadium steel construction throughout provides the strength and hardness needed for repeated use on mechanical fixings, plumbing connections, and general site maintenance. The 10mm size handles M6 bolts and nuts, which appear across a wide range of fixings, brackets, electrical enclosures, and light mechanical assemblies. The ring end suits situations where you can fully engage the fastener for maximum torque transfer, while the open end reaches fasteners where access from above is restricted by adjacent pipework, wiring, or structure.

The slim profile keeps the wrench usable in the tight spaces where combination spanners earn their keep. At 40g this is light enough to carry a full set without adding significant weight to a tool roll or belt pouch.

Key Specifications: Size: 10mm. Type: Combination (open + 12-point ring). Material: Chrome vanadium steel. Surface: Anti-slip jaw treatment. Model: FMMT13033-0. Weight: 0.04kg. Dimensions: 193 x 24 x 44mm.