Professional Torque Screwdriver

Tolerance of torque ±6%.
6.35mm (1/4") Hex drive for bit; 6.35mm (1/4") square drive for socket.
Automatic-rebound knob design for easy torque adjustment.
Easy-to-read window scale with anti-dust cover.
Applied to both clockwise & counterclockwise directions.
Double injection grip with anti-slip design and attractive shape.
Quality meets DIN ISO 6789 & ASME B107.300-2010.