Genuine Makita F. Washer 12 (part 253810-6) — a precision thin washer designed to restore correct spacing and secure assembly in Makita rotary hammers and compatible garden/tool models. Engineered for reliable fit with models such as the HR4000C and HR4500C, this original Makita washer helps maintain smooth operation and simplifies routine repairs. Durable, easy to install, and sold as a genuine Makita replacement part.