33490 is a 6 piece, insulated T-handle hex screwdriver set (inch). Every single Wiha insulated tool is individually tested to 10,000VAC and rated to 1,000VAC (1,500VDC) for safety and peace of mind in energized applications. All Wiha insulated tools ar VDE certified and meet EN/IEC 60900 testing standards for protection against arc flash explosion, ASTM F1505 standard specifications for insulated and insulating hand tools, NFPA-70E standards for electrical safety on the jobsite, and CSA testing benchmarks for safety and performance.