If you have ever opened a US breaker panel, RV, or older boat switchboard and found recessed square socket screws, you have already met the square drive. Phillips slips off it, slotted rounds it out, and a bad fit at the wrong moment is how fingerprints happen. The Wera 168i is the VDE-insulated screwdriver made exactly for this pattern: individually tested at 10,000 volts to IEC 60900, safe up to the approved 1,000 V, and impact-tested at -40°C so the insulation holds in the cold.
The multi-component Kraftform handle splits the job between smooth hard zones, which let your hand glide for fast spinning and rapid repositioning, and softer grip zones that transfer high torque with less effort. Color-coded end caps with profile and size markings identify the driver the second you look at a tray, and the hexagonal anti-roll feature keeps it put on sloped surfaces like inverter covers and panel doors.
From the compact #1 with an 80mm shaft through the long-reach #2 at 200mm, five variants cover the square-drive sizes that show up in North American electrical gear, HVAC equipment, and machinery built for this market.
Key Features
VDE-insulated, individually tested at 10,000 V per IEC 60900, approved for work up to 1,000 V
Impact strength tested at -40°C for safety under extreme conditions
Kraftform multi-component handle: hard zones for speed, soft zones for torque
Color-coded with profile and size markings for fast identification
Hexagonal anti-roll feature prevents rolling away at the workplace
Zinc phosphate plated blade; made in the Czech Republic
The square drive electrician’s screwdriver that actually fits your panels.
