Precise Spring Collet ER-20 1/8″, Range .12-.16. – 3900-5182

• Made of high grade tool steel.
• Hardened and precision ground.
• Meets or exceeds Federal specifications.
• Collet must be placed into collet chuck nut before inserting into collet chuck.
• Major diameter is .830″.
• Overall length is 1.230″.

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