just ordered this and was delivered this morning just under £35 in total
http://www.ebay.co.uk/itm/390840891855?_trksid=p2060778.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT
for years ive used a digital vernier gauge and pins to measure the internal thickness of shims but is time consuming with more maths involved
so bought the above and must say its extremely accurate and very well made (not a lightweight flimsy piece of rubbish)
in order to measure the shims though you will need to grind down the adjuster arms to make the circumference slightly smaller so they fit internally into the shim (just be careful not to damage the mating faces or leave raised burred edges above the measuring faces)
will now make measuring these up a real doddle
http://www.ebay.co.uk/itm/390840891855?_trksid=p2060778.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT
for years ive used a digital vernier gauge and pins to measure the internal thickness of shims but is time consuming with more maths involved
so bought the above and must say its extremely accurate and very well made (not a lightweight flimsy piece of rubbish)
in order to measure the shims though you will need to grind down the adjuster arms to make the circumference slightly smaller so they fit internally into the shim (just be careful not to damage the mating faces or leave raised burred edges above the measuring faces)
will now make measuring these up a real doddle