Face Type Face Type |
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![]() | Machine Your Own |
Collet Type Collet Type |
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![]() | 3J |
Maximum Bore Diameter Maximum Bore Diameter |
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External Thread Size External Thread Size |
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Material Material |
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Body Diameter Body Diameter |
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For Holding For Holding |
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Face Pilot Hole Diameter Face Pilot Hole Diameter |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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Overall Length Overall Length |
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For Use With For Use With |
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Machine-Your-Own 3J Collets

When installed into a 3J collet chuck or holder, these collets can securely grip workpieces. Also known as emergency collets, their machinable face allows you to bore an opening to exactly the size and shape you need. All have external threads.
For technical drawings and 3-D models, click on a part number.
Max. Bore Dia. | Body Dia. | Overall Lg. | Face Pilot Hole Dia. | External Thread Size | Material | Each | |
1 3/4" | 2" | 3 3/4" | 1/16" | 1.988"-20 | Hardened Steel | 00000000 | 0000000 |