Electric drill epicycles gear set Key benefits Restore or extend the life of compatible power tools by replacing worn planetary/epicyclic gears. Deliver smoother, more consistent operation under load to help maintain torque and reduce vibration. Durable tungsten carbide construction that resists wear for longer service life compared with softer gear materials. What this set does Increases the functionality of existing equipment by providing a ready replacement or upgrade for the gear train. Designed to run smoothly in demanding conditions, helping tools work more reliably during repetitive or heavy tasks. Precision-manufactured to fit without modification when used with compatible models. Compatibility Made for use with multiple power tools, including lithium electric keys and 506 lithium battery charging drills. Intended as a direct-fit gear set for the listed tool types; verify model compatibility before purchase. Material and performance Gears made of tungsten carbide for high wear resistance and long-term dimensional stability. Engineered geometry for reliable engagement and reduced friction under typical operating loads. Installation and sizing Manufactured to precise dimensions for straightforward replacement and minimal adjustment. Comprehensive instructions included to guide installation and ensure correct fit and function. Practical use scenarios Repair: Replace a stripped or worn epicyclic gear in a 506 lithium battery charging drill to restore consistent torque and extend the tool’s usable life. Upgrade: Swap the original gears in a lithium electric key to improve durability when the tool is used frequently on tougher fasteners. Preventive maintenance: Keep a spare gear set in a service kit for field repairs by technicians, maintenance staff, or contractors to minimize downtime. What to expect A precision gear set that fits the specified tool types, supplied with installation instructions. No modification required when used with compatible models; confirm tool model before ordering. Technical note Product is an epicycles (epicyclic) gear set for electric drills and related power tools, constructed from tungsten carbide and designed for replacement or upgrade use with lithium electric keys and 506 lithium battery charging drills.