[SIZE] - 8mm Pilot Diameter, 20mm Gear Diameter, 11 Teeth
[FEATURE] - Durable and long-lasting, T-shaped grip for easy use
[FUNCTION] - During the tightening process, it acts to increase the torque input, so the drill chuck has a high clamping force
[APPLICATIONS] - It can be applied to the drill chuck of compatible electric tools such as electric drills, impact drills, hammer drills and drilling machines
[NOTICE] - Measure the size of the wrench hole in the drill chuck and use the appropriate drill chuck key for tightening