Centering a tool in the lathe -

or "why do lathe operators carry a six inch rule when everything is measured in thousandths?"

onctra.jpg - 25557 Bytes With the power turned OFF, place a six inch (150 mm) steel rule between the point of the tool and the work piece.  When the rule is vertical (or perpendicular to the bed), the tool is on CENTER!
2lowa.jpg - 40879 Bytes If the rule leans toward the operator, then the tool is too LOW!
2higha.jpg - 40690 Bytes If the rule leans away from the operator, then the tool is too HIGH!

Yeah, the chucking is a little wierd - don't ask.

The quick change tool post on this Enco (China) lathe is made by KRF.  See Suppliers page.