APPLICATION This Extended Length Extra-Deep Impact Grade Socket Set is designed for hard-to-reach deep well bolts. Perfect for tightening hex nuts on repair clamps, saddles, mechanical joint fittings and changing bolt on dual tractor wheels. EXTRA-DEEP Great for working in hard-to-reach areas. The extra-deep design provides more reach to the deep-set nuts, bolts and engine studs. Making it suitable for a wide range of automotive repair and maintenance tasks. TOP QUALITY .