Product Details
The kit includes TEKTON L-keys made from 8660 nickel chromium molybdenum steel heat-treated to HRC 54-58, providing maximum torque strength that consistently exceeds ASME standards for minimum torsion load and ISO standards for minimum proof torque. The keys are designed with high leverage by making larger sizes longer to increase leverage where it matters, and feature precise hex key geometry at the large end of each size range to ensure a tight fit with fasteners. They possess a 20-degree ball angle that improves access to fasteners while maintaining sufficient strength, and have slightly chamfered edges except on the smallest sizes (1.3 mm, 1.5 mm, 2 mm, 0.050 in., 1/16 in., and 5/64 in.) along with a smooth top face to optimize engagement. Dimensional accuracy and consistency are ensured by measuring tolerances both point-to-point and side-to-side. The keys are coated with a corrosion-resistant manganese phosphate finish tested by exposure to a 1% saltwater solution for 45 hours after cleaning with isopropyl alcohol and rinsing with tap water. Sizes are clearly marked, except on the smallest, with both high-visibility laser etching and stamped markings. The package includes a holder designed for quick access, organizing the L-keys facing forward for easy selection without moving other keys, or alternatively facing to the side for low-profile organization. The product is backed by a warranty with specific terms included.
