General description A comprehensive pulley holding tool set designed for use across the Volkswagen Group range of vehicles. This tool is essential for holding camshaft, crankshaft, oil pump, and water pump pulleys or sprockets while loosening and tightening the fixing bolts. It is a must-have kit for anyone working on modern engines, ensuring that camshaft sprockets remain still during belt replacement and tensioning. This tool set is a vital addition to any engine timing tool collection. Technical specifications Complete set of adaptors: 4.8mm, 6mm; square 15 x 6mm, square 15 x 12mm; 13 x 17mm and 16 x 20mm cups; Spline M10 & M12 Equivalent to OEM T10172A (T10172) & T10554 Compatibility and accessories Use with Laser 8421 camshaft holding conversion disc for the latest 1.5 TSI VW Group engines Camshaft holding conversion disc for later VW Group 3 cylinder 1.0L & 1.5L engines available (Laser Part No. 8421)