The Facom EH.6 standard bits series for countersunk hex head screws has a drive size of 1/4 inch.
Hex size 3 mm
Hexagon Screwdriver Bit, 3 mm Tip
Manufacturer:
Facom
Manufacturer Part No:
EH.603
Enrgtech Part No:
ET22637794
Warranty:
Manufacturer
£ 8.84
Checking for live stock
Head Type:
Hexagon
Type:
Driver Bit
Size:
3 mm
3D Model:
https://www.traceparts.com/els/rs-components/en/api/viewer/3d?SupplierID=RS_COMPONENTS&PartNumber=2381986&DisplayLogo=False
