Precise 9 Piece ER-11 1/2″ Straight Shank Spring Collet Chuck Set – 3900-1172

• High precision collet chuck system suitable for all milling and drilling applications.
• Unique self-releasing system.
• Wide holding range.
• Accuracy to .0005″.
• Comes with a fitted case.

Set Includes:
7-Collet: 1/16, 3/32, 1/8, 7/32, 1/4 & 5/16
1-Collet Chuck
1-Wrench

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