Designed to restore smooth, reliable power transfer in compatible angle grinders, the Metabo HPT – Hitachi 316055690 Angle Grinder Bevel Gear with Pinion 29" maintain consistent tool performance during demanding cutting and grinding tasks. This replacement assembly includes a precisely machined bevel gear and pinion that work together to transfer motor rotation efficiently to the grin... https://www.wholetoolbox.com/metabo-hpt-hitachi-316055690-angle-grinder-bevel-gear-w-pinion-29