Wood Splitter Cone 6" Fits 65mm round shaft which fits Digga and Auger-torque smaller drive units. We also have an adapter that can be used to take you from a 75mm square drive to fit the wood splitter cone 6". Warranty- 12 months for manufacturers defect, the tips are not covered as they are open to damage. Caution is advised not to overload the drive unit with a fixed drive as it is possible to bend the drive shaft in the unit. Be aware of heat. To see the wood splitter in action, Click HERE Click HERE for DIGGA website Click HERE for Machine Serve Digga page