• 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- industry leading tolerances Set Includes: 3/8" Sockets B3L-08, B3L-09, B3L-10, B3L-11, B3L-12, B3L-13, B3L-14, B3L-15, B3L-16. B3L-17, B3L-18, B3L-19, EHB315-Socket Rail for 15 Sockets