This is a genuine Milwaukee M18 1/4" impact driver with OEM parts, compatible with multiple models including 2656-20, 2658-20, 2658-22, 2658-22CT, and 2659-20. The part type is a switch, suitable for use in the main assembly wire housing and impact driver. It is a high-quality replacement part for your power tool and air tool, ensuring optimal performance and durability.