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 |
14 Reviews Hide Reviews Show Reviews
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Buy this now!!
I highly recommend these collets due to the high precision tolerance compared to other brands. I've purchased other ER11 collet brands from ebay and a couple of other sites due to being affordable, big mistake. Collets from the other brands (came in yellow boxes) had loose inner diameters when inserting bits in, as a result my cuts had uneven lines. I've since had no issues after using Adam's collets.
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ER Collet
Another quality product at the right price from Adam's Bits. Shipping was fast, as usual. Very happy.
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Very good.
Great.
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ER11 Collet
Fast delivery, extremely low run-out, perfect for my little 6040 machine
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ER Collet
Great quality. Prompt service and fast Delivery. Thanks Adam!
