Hexagon allen key 4mm CHF 0.80 incl. VAT Available immediately Quantity (pcs): Product description Features ISO 2936, chrome-vanadium steel, nickel-plated, deburred ends, for hex socket cap screws. Made in Germany. This tool fits for: Socket head cap screws: M5 Countersunk screws with hexagon socket: M6 Item no. 01902109.40 Barcode 01902109.40 Manufacturer 3DWare.ch Handelsware Stock 2 pcs Supplier article number 424020.0600 Screw head Hexagon