The Tekton 15-Piece Hex L-Key Set includes 7/16–3/4 inch and 11–19 mm L-keys. The L-keys are made from 6150 chromium vanadium steel that's heat-treated to 44–50 HRC and coated with a durable manganese phosphate finish that's resistant to corrosion. We measure our hex key tolerances in two ways, from point-to-point and side-to-side, to ensure the highest standards of dimensional accuracy and consistency. The L-key sizes are marked with a high-visibility laser marking and a stamped marking.
High Leverage – We designed these L-keys to be longer to increase leverage when it matters
Two Measures of Tolerance Control – We measure our hex key tolerances in two ways, from point-to-point and side-to-side, to ensure the highest standards of dimensional accuracy and consistency
6150 Steel – We make our keys with 6150 chromium vanadium steel that's heat-treated to 44–50 HRC to produce tools that are hard, but not brittle
Corrosion-Resistant Finish – We coat all of our keys with a durable manganese phosphate finish that's resistant to corrosion
Clear Markings – Tekton L-key sizes are marked in two ways: with a high-visibility laser marking and a stamped marking
6-pc flat end hex L-key wrenches: 7/16, 1/2, 9/16, 5/8, 11/16, 3/4 in
9-pc flat end hex L-key wrenches: 11, 12, 13, 14, 15, 16, 17, 18, 19 mm
