Preset limits torque applied to fasteners while rotating clockwise only
Egonomic; fits your hand like a glove (easier for bit to stay squrare to hex head in use)
Includes 3, 4, 5mm, and T25 bits stored in the handle
All durable metal internal construction for long Park Tool life
1/4 inch hex drive
LARGE numbers on the handle for easy detection (cheater glasses not needed)
Shop quality preset torque driver that limit torque applied to fasteners, preventing over tightening and damage to lightweight components. The PTD-4 features all metal internal construction with a comfortable, ergonomic composite molded grip. Each tool is assembled and calibrated at the Park Tool factory in Minnesota.