Material: High grade chrome-vanadium steel, through hardened.

Geometry: Torsion zone for protecting against premature breakage of bits under load.

Coating: Extremely wear-resistant diamond-sapphire coating with a long service life.

Drive: DIN 3126, ISO 1173, style C 6.3.

Application: For fatigue-free work; ideal bit for frequent working.

Extra: Non-corrosive coating. Diamond particles and sapphire particles for optimum torque transfer and a secure grip in the screw head.