| | | ER Collet Chucks
ER Chucks are used for precision work ER Collets achieve greater grip strength and higher precision than do double angle collets.
To use, first insert the collet into the chuck nut by squeezing the collet and pressing its face into the chuck nut collar ring until the collet collar is fully seated. Then load the collet into the chuck, insert a cutting tool and tighten with the appropriate nut wrench.
For collet removal, simply squeeze the collet while pulling it from the chuck nut at an angle.
Chucks are equipped with a left-handed-threaded stop screw and a chuck nut.
• Tolerance: Guaranteed to be 0.0002" at the collets’ nose.
• Accuracy: ER collets are the most accurate collets available. |  | CV-Flange Tooling E/R - Collis E/R Series Collet Chucks allow users precise, accurate gripping within
 .0002". - Collis E/R Series Collet Chucks result in improved tool life, improved part tolerances, less scrap, higher productivity, and less down time.
- Collis E/R Series Collet Chucks have threaded thru holes for a back-up screw. Coolant thru.
- Collis number includes nut.
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| CV-Flange Tooling Single Angle 
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|  | CV-Flange Tooling Double Angle - Collis features precision ground, compression nut for quick change and accurate part holding.
- Both chucks and collets are precision designed. They interchange with most other manufacturers’ toolholders for maximum flexibility.
- Includes nut and backup screw.
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|  | BT Tooling E/R Series - Collis E/R Series Collet Chucks allow users precise, accurate gripping within .0002".
- Collis E/R Series Collet Chucks result in improved tool life, improved part tolerances, less scrap, higher productivity, and less down time.
- Collis E/R Series Collet Chucks have threaded thru holes for a back-up screw. Coolant thru.
- Collis number includes nut and backup screw.
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