ER spring collets are made from an alloyed spring steel, fully hardened and ground to precise tolerances. Used to clamp round shaft CNC tooling cutters into position in tool holders. ER collects also come in various sizes and include ER11, ER16, ER20, ER25 (very common) ER32, and ER40 which will hold up to a 26 diameter shank.

• Gripping Range: 1-40
• Feature Run out: .0003 inches or less
• Material: Alloy spring steel and fully hardened
• Comes in plastic collet box
• Application: CNC tool holding/ clamping

BENEFITS

• Low noise operation
• Longer tool life
• Higher cutting accuracy
• Compatible with carbide micro tools