Nepros NTB209BWA 9-Piece 1/4" Drive 12-Point SAE Standard Socket Set

N-PowerFit Drive- Increased strength and reduces rounding or fastener damage by distributing stress through a gentle arc in the bore by enlarging the contact surface. Designed for maximum strength with minimal wall thickness made possible by tough materials, advanced processing technology, and optimal heat treatment. Optimal fastener fit- Nepros industry leading tolerances reduces the fit gap with bolts and nuts to the absolute minimum, creating a superior fit feeling. Exceptional surface finish- Proprietary hard chrome plating for anti-wear, anti-corrosion, and superior appearance. Rubber ring prevents slippage and improves workability during hand-tightening. Clear engraving- The beautifully-refined engravings are easy to see and increase the efficiency of work. Set contents 7/32",1/4",9/32",5/16",11/32",3/8",7/16",1/2",9/16", socket holder