German Polygon Wrench with ratchet mechanism from Unior with size 10mm, 11mm, 13mm, 17mm, 19mm, 8mm. Each German polygon wrench combines 2 tools, the German key for tightening bolts and the polygon suitable for tightening screws. It offers great flexibility as it combines the advantages of 2 different keys. Also, it has a breakable polygon head for use at any angle. It is suitable for tightening screws and bolts 10mm, 11mm, 13mm, 17mm, 19mm, 8mm in tight workspaces thanks to the ratchet mechanism it has.