( TORQUE SCREWDRIVER ) 1/4 inch drive, 1-5Nm with easy to read Nm scale window and slipper mechanism to ensure that no torque is applied beyond the set torque. ( TWIST LOCK FACILITY ) to ensure the set torque is maintained. ( SCREWDRIVER BLADES ) 3mm, 4mm, 5.5mm, 6.5mm, PH1, PH2, PZ1, PZ2. ( TWO COLOR INSULATION ) Screwdriver blades feature integrated protected insulation with two colors to clearly indicate if there is any damage. ( LIVE WORKING UP TO 1,000 VOLTS ) Approved for live working up to 1,000 volts and is designed and manufactured to DIN5264, DIN ISO 8764-1 and IEC60900 (EN60900). ( TOTAL TOOL ORGANIZATION ) Supplied in a unique tool tray which features a removable lid and dove tail joints. The set can be used on its own as a standalone set or as part of our Get Organized system where all of our tool trays click together allowing you to build your ultimate tool setup. Lifetime warranty