Crankshaft End Locking-Nut Tool for the following Honda models: - CB72/77, 1960s - CL72/77, 1960s - CA72/77, 1960s A new tool used for the disassembly and assembly of the special 4-slot locking-nut found on the L/H end of the crankshaft on the above models. Fits Honda locking nut OEM Part No 90231-259-010 Precision manufactured in the UK with 1/2 inch square drive for standard 1/2 inch bar/wrench. Price includes VAT and UK 1st Class post/packing. VAT Invoice sent with each order. Visit our eBay shop for other rare and regular classic Honda parts, literature and tools. Stock Ref: HWT041