• 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 • Double box ends with proprietary internal bore angle of 7 degree and 30 seconds for improved workability in tight spaces • Solid steel construction designed for maximum strength with minimal wall thickness made possible by tough materials, advanced processing technology, and optimal heat treatment • Compact external diameter is among smallest in the world and ideal for tight spaces • Flat Box End 6 pt sizes NM1-1012H,1315H, 1417H, 1618H, 1719H
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