ALL-CARB CAT40-ER20 Collet Chuck 2.76" Gage Length TH 0.0001 Runout Chucks Tool Holder

Gage length: 2.76"(4 pcs) Accuracy in tenth, 0.0001"/0.004mm RPM: 8000r/min Strong and sturdy, stable performance The surface processed by special workmanship, luster and bright