This is the Revolution Design Racing Products Ultra Flywheel Puller. The Revolution Design Racing Products Ultra Flywheel Puller makes maintaining nitro clutches easy. By clamping the black anodised aluminum fork behind the flywheel and turning the shaft the flywheel is pulled away from the crankshaft, eliminating the need to use a hammer or other tools to loosen a tightly fitted flywheel. The Ultra Flywheel Puller is also equipped with a 10mm nut driver that is ideal to tighten the clutch nut after refitting the flywheel. Both the black anodized aluminum fork and the high quality spring steel shaft feature laser etched RDRP logos for a factory look and easy identification.