That’s exactly correct! Thanks.Just a thought - is it left hand thread? In the exploded diagram I've found, the cross slide nut is bolted to the cross slide, the screw mount is fixed to the saddle. If the handle rotates clockwise to drive the slide away from the operator (deeper cut depth) that makes sense.
It probably is left handed. The pitch depends on whether or not it is a metric or imperial machine. 20TPI if imperial. If metric it won't be some odd pitch because it determines how much the cross slide advances per turn. I wouldn't want one that advances 1.25mm/turn and you probably don't either .
Do the dials indicate 0 to 50 or 0 to 40? If the feed screw is 1mm the carriage will advance ***almost*** .040"/turn..... I mean, who's going to quibble about being short by .0006299"/turnThat’s exactly correct! Thanks.
it is a Chinese machine so almost certainly metric. The hand dials are imperial to service the US market so it passes off as 20tpi.
0 to 50.Do the dials indicate 0 to 50 or 0 to 40? If the feed screw is 1mm the carriage will advance ***almost*** .040"/turn..... I mean, who's going to quibble about being short by .0006299"/turn