The Motion Pro Spanner Nut Socket is designed for the removal and installation of spanner (castle) lock nuts, serving as an equivalent to Honda tool 07VMA-MBB0100. Motion pro Features: Socket dimensions: 26mm outer diameter, 20.5mm inner diameter, 6mm pin width (4 pins) Constructed from premium high-carbon steel Heat-treated for enhanced strength and durability Durable hot black oxide finish 1/2-inch drive compatibility Laser-etched with Motion Pro logo and part number Specifications: Outer diameter: 26mm Inner diameter: 20.5mm Pin width: 6mm Number of pins: 4 Drive size: 1/2 inch Cross-Reference OEM Part Numbers: Honda tool 07VMA-MBB0100 08-0572 Majority of our listings are for a direct replacement for your original part. Our parts are made of quality and are designed to meet or exceed the original OEM Standards. Our products are often a cost effective alternative to genuine OEM Parts. Please note: the models of bike we state in our listings are for general guidance only. Please make sure this item will fit your bike before purchasing. Also, we cannot guarantee fitment to any non-UK models.