A finish pass on a mill roll is judged by what it leaves behind, not by how much metal it takes. This clip is that pass: light stock, a fresh edge and a surface that has to meet the roll's acceptance drawing.
What the clip shows
- Finish pass after the body has been roughed
- Light depth of cut, controlled contact
- Surface condition visible as the insert exits
Why this insert suits the cut
Finish turning on hardened steel is where a CBN grade earns its price. A worn or chipped edge shows up immediately as a mark on the surface, so the insert has to hold its geometry through the whole body.
Where this part is used
Roll finish determines strip surface in rolling mills and sheet quality in paper machines. A roll that finishes badly is reground, which costs a full cycle.
What to send with an inquiry
- Surface roughness or visual acceptance criteria
- Stock left for the finish pass
- Whether the roll is re-turned in place