The Stanley FatMax FMMT13036-0 is a 13mm combination wrench with an open jaw and a 12-point ring end. The anti-slip jaw treatment provides a more positive grip on fastener flats than a standard polished finish, reducing the risk of rounding under heavy torque loads.

13mm is one of the most commonly used metric spanner sizes in trade work. M8 flange bolts, M10 bolts with standard hex heads, roofing bolts, and a wide range of plumbing and mechanical fixings all use 13mm. It is the size you reach for most often across general construction, heating installation, and maintenance tasks. Having a reliable 13mm combination wrench is not optional for any working tool kit.

The 12-point ring end engages the fastener in 30-degree increments, allowing repositioning in tight spaces where swing arc is limited. The open end handles situations where the ring cannot engage from above. Chrome vanadium steel provides the strength for high-torque applications without the brittleness of cheaper alloys.

Key Specifications: Size: 13mm. Type: Combination (open + 12-point ring). Material: Chrome vanadium steel. Surface: Anti-slip jaw treatment. Model: FMMT13036-0. Weight: 0.074kg. Dimensions: 226 x 24 x 44mm.