Hex Key Set, Ace, SAE & Metric, 22-pieces

The Ace 22-piece hex key set is made with S2 Steel that is heat-treated, quenched, and tempered for optimum strength, torque, and ductility for safety and coated with a rust-resistant finish.

• A plastic holder firmly holds each key in a sized-marked hole so you always have the size you need at-hand
• The hex keys (allen wrenches) are used to drive internal hexagon socket (allen head) fasteners
• Long lasting