Internal Diameter Accuracy : H7, H8, H9
Internal Roughness : max Ra 0.2μm
Straightness : 1-1.2/1000mm
Roundness : tolerance × 1/2
Standard Length : 3M~12M
Special Length : 13M up
Internal Diameter : 18Ø~ 400Ø
Steel Grade : EN 1.0580, E355, JIS STKM13C, DIN ST52, SAE1020
Other Specification can be supplied upon request. (Max ID:1000mm, Max buffing length:13000mm )