ProHold Socket Hex Bits 9 Piece Tool Set - 2" Length. Includes sizes: 5mm, 6mm, 7mm, 8mm, 10mm, 12mm, 14mm, 17mm & 19mm. With ProHold Button Technology. Protanium High Torque Steel and ProGuard™ corrosion resistant finish. Packaged in a molded black case.