• 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
• Open end has reinforced teeth to prevent cracking and breaking
• Angle rise of 15 degree for box end
• Compact external diameter is among smallest in the world and ideal for tight spaces
• Contains NMS2-5/16, NMS23/8, NMS27/16, NMS21/2, NMS29/16, NMS211/16