The Park Tool ATD-1.2 Adjustable Torque Driver is a precision tool designed to prevent over-tightening of small bolts on bicycles. It features an adjustable torque range of 4-6Nm, making it ideal for delicate components like stem bolts, seatposts, and handlebars. The ergonomic handle ensures comfortable use, while the high-quality construction provides consistent and reliable torque application. Perfect for both home mechanics and professional bike shops, this tool helps ensure proper tightening without damaging components