Most suspension strut top fixings require the top of the strut to be held while the fixing nut is removed. The design of the tools required for this operation vary considerably from manufacturer to manufacture and often even across ranges. The 7673 has been specifically designed for repairing and replacing shock absobers including macpherson strut type assemblies. Contents: 1 x 1/2"D (21mm Hex) Go Thru' Ratchet; 2 x Magnetic Extension bars 1/2"D - 95mm and 190mm; 1 x Special Extension Bar 120mm.3 x Slot Socket Adaptors: 5mm x 8mm, 6mm x 8mm, 8mm x 11mm. 7 x Go Thru' Sockets 16mm, 17mm, 18mm, 19mm, 21mm, 22mm, 24mm x 78mm long. 6 x 8mm Hex Shank Bits: Hex 5mm, 6mm, 7mm, 8mm, Spline M10 and Star* T50 and 4 Hex Socket Adaptors: 7mm, 8mm, 9mm, 10mm.