When I first got trained on my company's new muller martini tempo stitcher I was given an operators tool kit from muller. I left the trade for a while and gave my kit away,now I'm back. I've scoured the whole Internet trying to find long Allen keys with no joy. The Allen keys muller gave me where around 300mm long however the longest I can find are around 160mm. Not long enough when changing feeders from normal grip to suction, reverse grip etc. please heeeellllpppp