Beta insulated tools are safe for use on electrical systems up to 1000V AC (1500V DC). The design meets EN 60900 specifications and each tool is subjected to the following stringent tests: handle resistance to slipping and flame propagations, and high voltage test (10000V). The driver has a narrow shank for a consistent width from the blade all the way up the shank, preventing interference between the shank and the sides of a threaded hole. The handle design molded for a comfort fit and the unique asymmetrical gripping inserts have been designed for maximum traction. The drive type is also printed on the end of the handle for quick identification. The blade measures 0.5mm x 3mm with a 100mm shank and 200mm overall length.