[ QUOTE ] A single wrench with four sizes and probably used on lathes or the like. [/ QUOTE ] i was thinking brake lathe wrench
It's a fantabulator. You hold it against the fan belt on a running engine to remove the glaze that causes squeaking noises. The different sizes are for various widths of fan belts. Am I correct Sir?
That was a fantabulous answer but wrong. Here's a hint. All you needed with this tool is a flashlight and a drip tray and you could ride all day and night.
It's a sort of universal wrench for british bikes. 1/4, 5/16, and 3/8 whitworth or bsf nuts, and the ones I remember had a 1/4 square as the smallest, which suggests brake adjustment. There is a britich "cycle" thread, which is 26 tpi. lots of non standard things in use over here. Mart.
Congratulations Mart, you are the winner. When I had my 1962 Triumph I used this wrench to change the cooper washers on the rocker arm oilers ( regularly ) tighten the distributer ( regularly ) adjust the clutch ( regularly ) tighten the chain ( regularly ) and tighten everything else ( regularly ). The flashlight was so you could see at night. Lucas lighting sucks. The motto at the Lucas factory is, A good day's work and home before dark. The drip tray was so your buddie's wife wouldn't freak out when you parked on their driveway. Ahh! my Triumph, I loved that bike. Now here's the next one. Have fun.