The Motion Pro Spanner Nut Socket is designed for the removal and installation of spanner (castle) lock nuts, serving as an equivalent to Suzuki tool 09940-14970. Motion Pro Features: Dual-end socket for versatility Large end dimensions: 50mm OD x 36.6mm ID x 5.6mm pin width (4 pins) Small end dimensions: 33.8mm OD x 25.6mm ID x 3.5mm 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: Large end: 50mm outer diameter, 36.6mm inner diameter, 5.6mm pin width Small end: 33.8mm outer diameter, 25.6mm inner diameter, 3.5mm pin width Drive size: 1/2 inch Cross-Reference OEM Part Numbers: Suzuki tool 09940-14970 08-0567 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.