Precision ground and hardened.This collet nut is a great replacement for the broken part.For use with ER20 Spring Collets. Specification:Product Name : Collet NutsModel : ER20-MStandard: MetricOverall Size:28 x19mm/ 1.10” x 0.75“ (D*H)Thread Size: M24x1mmHole Diameter: 16mm/ 0.63“Material : Cast SteelPackage Content: 1 x Collet Nuts.
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