The 300mm Stanley MaxSteel Adjustable Spanner is the largest model in the range, delivering maximum leverage and jaw capacity for heavy-duty applications and larger fasteners. This professional-grade tool is essential for demanding maintenance work where significant torque is required, making it indispensable for industrial settings, agricultural machinery and heavy vehicle maintenance. Constructed with a forged alloy-steel body, the 300mm spanner provides outstanding strength and durability for the toughest jobs. The narrow head design ensures that despite its substantial size, it can still access restricted spaces, whilst the extra-wide jaw capacity handles even the largest fasteners with ease. Features and Benefits:300mm length provides maximum leverage for heavy-duty applicationsExtra-wide jaw capacity accommodates larger fastenersNarrow head design maintains versatility in confined spacesLaser-marked SAE and metric jaw scales for precise fastener identificationBi-ma