The 300mm Sealey Waterpump Pliers are the largest in this professional range, providing maximum reach and leverage for larger diameter pipes and difficult-to-access fittings. This extended length is ideal for heavy-duty plumbing work, boiler installations and industrial maintenance tasks where extra jaw capacity and turning force are essential. Manufactured from hardened and tempered drop-forged Chrome Vanadium steel with a finely ground polished head, these 300mm pliers are built for demanding applications. The unique teeth design and diamond-shaped jaws increase torque and grip on round, flat, square and hex shapes, whilst induction-hardening to 55-65 HRC ensures the jaws maintain their aggressive bite even under heavy loads. Dual material comfort grip handles provide excellent control despite the extended length, and the black oxide finish delivers superior corrosion resistance. Perfect for professional tradespeople tackling larger-scale projects requiring maximum gripping capacity