• 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 B3M-08, B3M-09, B3M-10, B3M-11, B3M-12, B3M-13, B3M-14, B3M-15, B3M-16. B3M-17, B3M-18, B3M-19, EHB315-Socket Rail for 15 Sockets