Originally posted by glee46 ...I'm looking for whatever can make it easier ... to remove parts without damage to them...
Go to a nearby hardware or auto parts store with your lens(es) or at least their ring diameters. Tell 'em you want the fat-ist, sticky-ist, squishy-ist O-rings they have for those diameters. If they're not sticky enough, daub 'em with rubber cement. Then try to find that famous crutch tip or drain plug (or any cylindrical object) to press on the O-ring.
Find a set of leaf-type feeler gauges at a used tool place. With a little nippin', grindin' and filin' you can make any size leaf-type spanner wrench.
Quote: The professional tool is a rubber ring of the size of the front ring.
Nope. The professional answer is the cheapest trick that'll get 'er done. It's the amateurs that get suckered into the catalog tools.
H2
[You DO understand that the LBA-equivalent here is to acquire a
used 7x12" Harbor Freight machine lathe with 4-jaw chuck and allocate it to the camera budget fund, right? But it's gotta be
used and less than the cost of a bargain K100D.]