The Dolmar 958501606 is an authentic 2-string automatic tap & go trimmer head, designed for efficient cutting with Dolmar and Makita brushcutters and grass trimmers. This robust head features an M10 x 1.25 LH thread, ensuring secure attachment and compatibility with various models. Its automatic line feed system allows for quick and easy line advancement by tapping the head on the ground, enhancing productivity and reducing downtime during operation. Ideal for maintaining lawns and clearing overgrown areas, this genuine OEM part ensures optimal performance and durability.