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Heat-Treated Metric Hex Keys Assortment (For Use with Socket Set & Socket Cap Screws)Hillman Item #1541
An assortment of heat-treated metric hex key variants from The Hillman Group. Also known as Allen keys, hex keys are L-shaped tools used to drive bolts and screws that have a hexagonal socket in the head. The contact surface of the screw or bolt is protected from external damage. Variants included in this assortment range from 1.5mm to 10mm in diameter. Full assortment contains nine (9) refills comprised of Hillman item numbers #1542 - #1550.