Klein Tools' 18-Key Color-Coded Hex Key Set conveniently consolidates the most popular SAE and metric sizes into one compact caddy. The industrial strength, extended reach ball-end keys are optimal for working at angles up to 25 degrees. The round shanks with plastic sleeve provide enhanced comfort during prolonged use.Warnings NOT insulated. Will NOT protect against electrical shock. Always wear approved eye protection. Do NOT use a pipe or similar extension to increase leverage. Features Color-coded sleeves for quick identification of each key size Rust resistant black phosphate coating on every key Interlocking cases for sleek and convenient storage to stack SAE and metric sets together Extra-long arms are 30-Percent longer for greater reach and leverage Color-Coded, Round Shaft, Extra-Long Round shanks with plastic sleeve provided enhanced comfort during prolonged use Ball-end hex keys for working at angles up to 25 degrees 18 hex key sizes included: 7/64, 1/8, 9/64, 5/32, 3/16, 7/32, 1/4, 5/16, 3/8-Inch and 1.5 mm, 2 mm, 2.5 mm, 3 mm, 4 mm, 5 mm, 6 mm, 8 mm, 10 mm Heat-treated and tempered for added strength and durability Measurement Standard: SAE, Metric Size: 7/64 in, 1/8 in, 9/64 in, 5/32 in, 3/16 in, 7/32 in, 1/4 in, 5/16 in, 3/8 in, 1.5 mm, 2 mm, 2.5 mm, 3 mm, 4 mm, 5 mm, 6 mm, 8 mm, 10 mm Number of Pieces: 18 Type: L-style Hex Keys Overall Length: 9.28 in (23.6 cm) Depth: 9.21 in Overall Height: 1.27 in (3.2 cm) Height: 1.27 in Width: 7.12 in Overall Width: 3.85 in (9.8 cm) Weight: 2.84 lb Material: Steel Finish: Black Phosphate End: Ball-End Color: Orange Application: Tightening or Loosening Screws or Hex Bolts DownloadsSpec Sheet