Sink Tap Installation Spanner Set -9mm - 12mm Adjustable Sockets Back Nut Wrench Durable steel tube body with corrosion-resistant, powder-coated finish. Tilting handle for use on basin tap-back nuts in confined spaces. Interchangeable heads ensure compatibility with most single-lever taps. Hollow design accommodates the longest threaded rods. 13mm hexagonal drive and 8, 9, 10, 11 and 12mm heads. SIZE: L x W x H (mm) 41 x 1 x 2 WEIGHT: 0.34 t1070