Every screwdriver is independently tested at 10,000 volts for 10 seconds. VDE is approved for increased safety. Process of inline hardening: +100% bar strength and +100% tip life. Handle material: remains chemically resistant but softer for increased comfort. Apply +10% torque to handle ‘Channel’. Laser marking leaves marks that are essentially permanent. Improved screw fit, increased torque transmission, and decreased wear are all benefits of CNC tip machining.