Klein Tools' Hollow Magnetic Color-Coded Power Nut Drivers are designed with the professional in mind. Each power nut driver is made of high-grade impact steel and is color coded for easy identification. The nut drivers contain Rare-Earth magnets to securely hold fasteners, and are also extra long for reach into recessed areas. Cushion-Grip, ratcheting handle provides outstanding comfort and control.Features Powerful, Rare-Earth magnets to retain fasteners for one-handed driving Hollow Shaft, Rare-Earth Magnet, Impact Rated, Color Coded, Extended Length Magnet size increases with each hex size to hold screws and nuts 3 3/4-Inch (9.5 cm) hollow core facilitates work on threaded rod Color coded hex sizes for easy identification 5-Inch sturdy shaft for extended reach and access Ratcheting handle provides added utility and outstanding comfort and control 6 hex sizes: 1/4-Inch, 5/16-Inch, 3/8-Inch, 7/16-Inch, 1/2-Inch, 9/16-Inch Durable finish for corrosion protection Warnings Always wear approved eye protection. Never use on or near live electrical circuits. NOT insulated. Will NOT protect against electrical shock. Do NOT use to pry or chisel. Number of Pieces: 6 Hex Sizes: 1/4 in, 5/16 in, 3/8 in, 7/16 in, 1/2 in, 9/16 in Material: Steel Alloy Shaft Length: 5 in (12.7 cm) Handle Type: Ratcheting Quick Connect Drive Size: 1/4 in Overall Length: 6.3 in (16 cm) Width: 8.11 in Weight: 1.5 lbs Country of Origin: Taiwan Drive Type: Hex Handle Material: Plastic Type: Nut Driver Set Overall Width: 0.8 in (2 cm) Height: 1.38 in Handle Length: 5.19 in (13.2 cm) Depth: 9.3 in Overall Height: 0.8 in (2 cm) Measurement Standard: SAE DownloadsSpec Sheet