Abrasive process performed by a set of bonded abrasive sticks using a combination of rotational and oscillatory motions .
----
Common application is to finish the bores of internal combustion engines .
---
Grit sizes range between 30 and 600 .
----
Surface finishes of 0.12 μm (5 μ-in) or better .
---
Creates a characteristic cross-hatched surface that retains lubrication.