Sealey VS019 Dual Mass Flywheel Measuring Tool Essential tool designed to test the condition of a Dual Mass Flywheel (DMF). Use with the DMF fitted to the vehicle and with the gearbox/clutch removed. Fitting a new clutch with a faulty DMF may result in early failure of the new clutch. Results must be checked against the vehicle manufacturer's specification. Essential tool designed to test the condition of a Dual Mass Flywheel (DMF) Use with the DMF fitted to the vehicle and with the gearbox/clutch removed Fitting a new clutch with a faulty DMF may result in the early failure of the new clutch Results must be checked against the vehicle manufacturer's specification Model No VS019