ER Collet Ultra High Precision 0.005mm / 5u run-out. These are not your blue/yellow boxed collets that are the cheapest of cheapest of collets that do not specify a precision value. A high precision collet allows for quieter machining, longer tool life and greater cut accuracy.
Available in ER11, ER16, ER20 and ER25 in common sizes 3.175mm (1/8"), 4mm, 6mm, 6.35mm (1/4"), 8mm, 10mm and 12.7mm (appropriate to ER size). Clamping range is that of nominal inner diameter size -1mm (eg. 6mm would accept 5mm to 6mm).
How to check what diameter you have
| ER Collet | Length | Diameter | Range |
|---|---|---|---|
| ER-11 | 18 mm | 11.5 mm | 0.5—7 mm |
| ER-16 | 27.5 mm | 17 mm | 0.5—9 mm |
| ER-20 | 31.5 mm | 21 mm | 1—13 mm |
| ER-25 | 34 mm | 26 mm | 1—16 mm |
| ER-32 | 40 mm | 33 mm | 1—21 mm |
| ER-40 | 46 mm | 41 mm | 3—26 mm |
15 Reviews Hide Reviews Show Reviews
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Er collet
Product was shipped quickly, came well packaged, and was exactly what i needed, always have gotten great service from Adam's Bits.
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Works well
Works great - used it to replace a cheap ER11 collet I received with a cheap CNC router. Works much better
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Does exactly what it's meant to do
This was exactly what I was looking for and goes perfectly with the drill bits that I also purchased from Adam's Bits. Highly recommend
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Great product
A great product and great service as usual.
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Collets
Very pleasant to deal with
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Collet
Very happy with the this, it is a very good fit for my bits and spindle. Recommended!
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Er collets
Excellent concentricity Use them for thread milling Trust Adams stuff AAA +++
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ER Collet 6mm
These are great. All products I've gotten from Adam's Bits are quality, and always in the mail on the same day.
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ER11 Collet Ultra High Precision 0.005mm 5u
Runs smmoth as silk, great value
