• Made of heavy duty chrome molybdenum (CR-MO) steel, after heat treatment and forging, it has high hardness and good toughness
• The Black Powder Coated finish to prevent the allen bit socket from rusting, and corrosion-resistant, increase the number of uses
• Double-sided laser, the front is the LOGO word, and the reverse is the scale mark, high-contrast, permanently laser and easy to read, even in low light
• 20-Piece 1/2" Dr. impact allen bit socket Metric & SAE sizes: 5mm, 6mm, 8mm, 10mm, 12mm, 14mm, 16mm, 17mm, 18mm, 19mm. 1/4"，9/32"，5/16"，3/8"，7/16"，1/2"，9/16"，5/8"，11/16"，3/4"
• More competent to work in a narrow space, come with a heavy duty blow molded storage case