A tougher, longer lasting power bit! Precision tip geometry transmits higher torque into the screw, resulting in a decrease in the screw or screwdriver slippage... a reduction in the ejection forces...thus giving low wear, and longer tip life. Outlasts most power bits 5 to 1! Domestic high carbon, open hearth tool steel. Individually heat-treated. Industrial quality. Each bit 1-7/8” overall length.