Makita 346677-0 Spring Guide — original Makita replacement part designed for demolition/rotary-hammer models (examples: HM0860C, HM0870C, HM0871C, HMJ0860C) and cross-referenced to old part number 345360-6.

This precision spring guide locates and supports the internal spring/piston assembly to maintain correct spring tension and alignment, helping restore smooth piston action, consistent impact performance and reliable tool operation after service or repair. It’s a direct, drop-in replacement sold as part number 346677-0.

This part 346677-0 supersedes older part numbers: 345360-6