7Pcs ER11 Spring Collet Set For CNC Workholding Engraving Milling Lathe Tool 1-7mm Excellent Quality;

Specification:
Style: ER11
Material: High Grade 45 Carbon Steel
Total height: 18mm
Outer diameter(Max): 11.5mm
Gripping Range: 1MM to 7MM (1mm,2mm,3mm,4mm,5mm,6mm,7mm)
Fits metric shank size(s): For example,1mm Collet Fits 1mm metric shank,2mm Collet Fits 2mm metric shank.
Features:
Made of high grade specially formulated spring steel.
Hardened and precision ground.
Built in self-Release design and tools will never get stuck in holder.
Package Included:
7x ER11 Collets