Cylinder Walls

Well Then,

I guess I'll just have to throw out my 'Browne and Sharpe' Micrometer Set.

Those Bastards never told me I could use a Dial-Caliper to measure
Piston's and Cylinder Bore Holes.

$2000 'Down-the-Drain'

I think you missed the last paragraph, and perhaps the whole point.

The knurling is still approx .005 proud..

hope it helps.