Screwdriver Bit Gedore 6155440

Gedore 6155440 is a hand-operated screwdriver bit with a square drive (C 12.5) conforming to DIN 3120 and ISO 1174 standards. The bit features a ball retaining groove and a knurled grip for manual use. It is chrome-plated and made of Gedore vanadium special steel with a pressed-in pin; the steel is manganese-phosphated for improved surface protection. The bit measures 63 mm in depth, 33 mm in height and weighs 98 g.

Advantages

The chrome-plated finish and manganese-phosphated surface treatment increase corrosion resistance. The Gedore vanadium special steel provides wear resistance and dimensional stability under torque. The ball retaining groove and pressed-in pin ensure secure fit and reliable retention in compatible holders, while the knurled grip enables controlled manual operation.

Suitable for

Key specifications

How to use

Insert the bit into a compatible square-drive holder or driver until the ball retaining groove engages. Use the knurled grip for manual positioning and control when applying torque by hand. For mechanical driving, ensure the holder’s ball retention matches the groove to secure the bit. After use, clean and lightly lubricate if necessary before storage to maintain the chrome-plated surface and phosphated layer.

Recommendations

Use the Gedore 6155440 bit within the torque limits of your driver and holder. Avoid impacts or misuse that could deform the square drive or damage the ball groove. Store dry and clean to preserve the manganese-phosphate treatment and chrome finish.