Product: MICRO slotted bit

The manufacturer's page explicitly mentions examples of applications for the 2035 series: electricians

which may be relevant for wear resistance and corrosion protection to the extent specified by the manufacturer

9 mm internal hexagon is required

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Bit serie 4 lige kærv 1/4"; 0,8x4,0x70mm Unit(s):Packet Product: MICRO slotted bitProduct Overview 800 4 Z bits are screwdriver bits designed for slotted screws. The bit is part of WERA's 800 4 Z family and is described by the manufacturer as "tough for hard materials". The product comes with a 1 4" hexagon drive (Wera connecting series 4) and is compatible with holders according to DIN ISO 1173 F 6. 3. Features and Function 800 4 Z bits provide a standardized connection surface via the 1 4" hexagon drive, allowing mechanical