0.050 in. - 3/8 in., 1.3-10 mm Ball End Hex L-Key Set with Holder (28-Piece)

The TEKTON 28-pc. Ball End Hex L-Key Set includes the most common inch hex key sizes from 0.050 to 3/8 inch and 1.3 to 10 mm stored in durable holders with self-aligning key slots that allow keys to be removed and inserted without moving others out of the way. The L-keys are made with 8660 nickel chromium molybdenum steel that's heat-treated to HRC 54-58 to produce tools that are hard, but not brittle. As a result, the maximum torque of the L-keys consistently exceeds the ASME standards for minimum torsion load and the ISO standards for minimum proof torque. The L-keys are coated with a durable manganese phosphate finish that's resistant to corrosion. With the exception of the smallest sizes, L-key sizes are marked in two ways-both with a high-visibility laser marking and a stamped marking.