• Box end has built-in 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
• Clear engraving- The beautifully-refined engravings are easy to see and increase the efficiency of work.
• Compact external diameter is among smallest in the world and ideal for tight spaces
• 12 point, 3/8" size
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