T.I.R.: 0.0003" or 5um. In order to make all collets running true, on your side, make sure your machine spindle and chuck holder running true,
on my side, I'll make sure all those collets running in tenth.
Special angled slots increase rigidity
Better overall balance of tool holder assembly
Protects tool holder from contaminants
Use with any standard ER collet chucks for coolant-thru tool applications.
Decent quality at reasonable price
If this item can not work properly for you, please contact our Customer Service before you open the case via e-bay or pay-pal.
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