Please log in here to access all benefits, including promotional discounts and faster checkouts.

Omega Products ER20 Collet Standard Precision - 10 Micron Run-Out - 9mm - 8mm

Omega Products ER20 Collet Standard Precision - 10 Micron Run-Out - 9mm - 8mm

SKU:OM32139

ER20 Collet Standard Precision - 10 Micron Run-Out - 9mm - 8mm is built to deliver dependable, repeatable performance in every milling, drilling, or engraving task. This high-precision ER20 colle... Read more ↓
Collet SizeER20
Clamping Size9.0-8.0
£6.41
Prices shown ex. VAT
In Stock
View Other Sizes →
Free delivery over £50 ex VAT
Secure checkout
14-day returns
30+ years expertise
Klarna
Pay in 3 interest-free instalments. No extra cost if paid on time. 18+ only.
Learn more about Klarna
Speak to our team
01732 887334
Mon – Thurs 8:30 – 17:30 · Fri 8:30 – 16:30

ER20 Collet Standard Precision - 10 Micron Run-Out - 9mm - 8mm is built to deliver dependable, repeatable performance in every milling, drilling, or engraving task. This high-precision ER20 collet is designed to clamp round tools securely in an ER20 collet chuck, with a tight tolerance that minimizes run-out and maximizes the quality of your cuts.

Why this matters in practice:

  • 10 micron run-out for cleaner finishes — smaller deviations mean truer tool paths, less chatter, and noticeably better surface textures on aluminum, steel, and plastics.
  • 8–9 mm shank compatibility — optimized for common mid-size tool shanks, giving you reliable grip without overhang-induced deflection in typical hobbyist and shop setups.
  • Standard ER20 interface — universal fit with a wide range of ER20 chucks and machines, enabling quick replacements and less downtime when components wear.
  • Rugged, precision-ground construction — engineered to hold its alignment under demanding machining cycles, reducing the risk of tool slippage and improving overall rigidity.
  • Versatile for multiple operations — ideal for light- to mid-duty milling, drilling, and contouring tasks where consistent concentricity matters most.
  • Concentric gripping for improved accuracy — a uniform clamping force around the tool shank translates to steadier cuts and tighter tolerances, especially on longer tools.
  • Low-maintenance design — straightforward cleaning, proper storage, and regular inspection help maintain accuracy over time and extend service life.

Who benefits from this standard-precision ER20 collet? It’s a perfect fit for small-to-medium shops, CNC hobbyists, and educational labs that require reliable grip, predictable performance, and easy interchangeability with existing ER20 chucks and tooling. If your workflow relies on consistent run-out and repeatable results, this collet keeps your tooling in alignment and your finishes precise.

Tips for optimal results:

  • Keep the tool shank and inner bore clean and free of debris before seating to preserve the 10 micron run-out performance.
  • Insert the tool fully into the collet, then tighten the ER collet chuck evenly with the proper wrench to avoid uneven clamping.
  • Inspect run-out with a simple test cut or a dial indicator setup and recheck after heavy cuts or thermal cycling.
  • Pair with balanced tooling and appropriate speeds/feeds to maximize the benefits of tight concentricity.

Upgrade your tooling with this ER20 Collet Standard Precision and experience how tighter grip and tighter tolerances translate into smoother feeds, better finishes, and more predictable results across common milling and drilling applications.

Collet Size ER20
Clamping Size 9.0-8.0

What time are Protool open?

We are open Monday to Friday between 8:30am and 5pm.

Do you offer Free Next Day delivery?

Yes! We offer Free Next Day delivery via Royal Mail Tracked 24 on all orders over £50 ex VAT*. We also offer Free DPD Local Next Day delivery on all orders over £100 ex VAT*.

We also offer the following:

  • Royal Mail Tracked 24 — £5.90 (FREE on orders over £50 ex VAT*). Order before 4:30pm for next day delivery. No signature required.
  • DPD Local Next Day — £8.00 (FREE on orders over £100 ex VAT*). Standard next day delivery to UK mainland addresses.
  • Royal Mail Special Delivery — £12.50. Guaranteed delivery before 1pm the next working day.
  • DPD Saturday Delivery — £25.00. Must be ordered on Friday before 4pm. Pre-12pm delivery.

For delivery to Scottish Highlands & Islands, Northern Ireland, Republic of Ireland, or overseas locations, additional charges apply. Please see our delivery page for full details, or call us on 01732 887 334.

*T's & C's and exclusions apply. Please see our delivery page for more information on all our services.

★★★★★
Nice experience staff are very helpful and interested...
Staff are very helpful and interested in providing a good service making us the customer feel valued.
Bill
★★★★★
first place we look
honest about stock and prices are competitive.
Phil
★★★★★
Polite and helpful
Staff are very helpful and polite.Goods that were in stock were dispatched same day and back orders were quick in coming through .
Graham
★★★★★
Buying experience
Phone requests are handled quickly and without any fuss. The website is easy to use and straightforward to order from. It’s especially helpful that it shows real‑time availability, so we don’t need to call to confirm whether parts will arrive.
Jeremy

Full Range: Omega Products ER20 Collets Standard Precision - 10 Micron Run-Out

View full collection →

You are viewing OM32139. Click any other SKU to view its full details.

Product SKUCollet SizeClamping SizePriceStock Order
OM32144 ER201.0-0.5£8.52 In Stock
OM32145 ER201.5-1.0£8.52 In Stock
OM32132 ER202.0-1.5£6.41 In Stock
OM32146 ER202.5-2.0£7.86 In Stock
OM32133 ER203.0-3.5£6.41 In Stock
OM32147 ER203.5-2.5£7.86 In Stock
OM32134 ER204.0-3.0£6.41 In Stock
OM32148 ER204.5-3.5£7.86 In Stock
OM32135 ER205.0-4.0£6.41 In Stock
OM32136 ER206.0-5.0£6.41 In Stock
OM32137 ER207.0-6.0£6.41 In Stock
OM32138 ER208.0-7.0£6.41 In Stock
OM32139 ViewingER209.0-8.0£6.41 In Stock
OM32140 ER2010.0-9.0£6.41 In Stock
OM32141 ER2011.0-10.0£6.41 In Stock
OM32142 ER2012.0-11.0£6.41 In Stock
OM32143 ER2013.0-12.0£6.41 In Stock
OM33038 ER2013.5-13.3£18.52 In Stock
OM33039 ER2014.0-13.8£18.52 Next Day
OM33040 ER2014.5-14.3£18.52 In Stock
OM33041 ER2015.0-14.8£18.52 In Stock
OM33042 ER2015.5-15.3£18.52 In Stock
OM33043 ER2016.0-15.8£18.52 In Stock

View Other Sizes

with tools we think you'll like