High Precision 1pcs ER8 Collet 4.0 mm (5/32）TIR :10μm/0.0004″

iCarbide ER8 collet 

Finishing & Rough Cutting: High precision run out saving your cost-effective

Precision:High Precision Runout: TIR 0.005μm or 0.00015

Hardened:Outside: HRC48  Inside: HRC32

Size includes :4.0mm