You need a JIS Crosspoint driver - available from Micro Tools: http://www.micro-tools.com/Merchant2/merchant.mvc?Screen=PROD&Store_Code=MT& Product_Code=58-0318
Heat the screws to 450 degrees with a soldering iron to loosen the locktite. This may help: http://members.shaw.ca/hargravep/70-210.htm Powell At 09:42 AM 31/07/2005 , you wrote: > >For those who don't recall... > >I have an M135/3.5 that isn't focusing to infinity. >I've finally gotten the grip off, there is 3 screws >around the barrel that seem to hold the filter ring in >place. Those screws will not budge. I'm starting to >think the standard six piece kit of precision phillips >head screwdrivers lacks appropriately shaped tips to >turn those screws - they act like they'll need a good >bit of torquing to get them to turn loose. > >Any pointers for getting these little (insert >expletive here) loose? > >Thanks, y'all are the greatest. > >-Jon M.