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✓ Reduced runout means less cutter wobble, helping your tools stay sharper and cut cleanly for longer.
✓ 5-Micron Precision, ≤0.005 mm TIR keeps your cutter running straighter with less unwanted movement.
✓ Reduced vibration and uneven cutting forces means less stress on the cutting edge and fewer broken cutters.
✓ Even flute loading spreads the cutting force across each flute instead of overworking a single edge.

RouterBits™

5 Micron Precision Collet

Trusted By Britains Best Workshops.

£19.99
£19.99
60 Day Money Back Guarantee If your tool fails to perform as described
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What is Micro-Grain Solid Carbide? ⌄
Micro-Grain Solid Carbide™ is made from finer carbide particles, packed tighter together than standard carbide. That means a sharper edge that lasts longer and resists snapping, so you get cleaner cuts with fewer bit changes.
Do I get personalised feeds and speeds? ⌄
Yes, we'll send an introductory email 5 minutes after your order is confirmed. Check junk and spam if it hasn't arrived. Alternatively, contact applications@routerbits.co.uk.
Where are the tools designed and made? ⌄
All tools are designed in the United Kingdom and engineered in Germany.
Is there a 60 day money back guarantee? ⌄
Yes, we offer a 60 day money back guarantee if the tools fail to perform as you expected, or if the advice falls short.
Which size do I need? ⌄
We recommend the 7 pack. The most commonly bought bits are 6mm and 4mm, but we recommend buying a couple of each size.
Will it work on my machine type? ⌄
Yes, these compression cutters work on every 3-axis CNC machine model, including popular machines like Shapeoko, X-Carve, ShopBot, Onsru and all other 3-axis CNC models on the market. As long as your machine is a 3-axis CNC and you have the correct collet size, these cutters are compatible. So there’s no need to have any doubt about compatibility. But if, for whatever reason, they aren't suitable for your machine, you're welcome to send them back and we'll give you your money back.
Which materials does it work with? ⌄
All wood sheet materials, including MDF, plywood, melamine faced boards, and many more.
Which types of collets does it work with? ⌄
Compatible with ER11, ER16, ER20, ER25, ER32, ER40, OZ/EOC, and ER-style tool holders such as ISO30, BT30 and HSK, assuming you have the correct collet size for the cutter's shank diameter.

Compare Collet Precision

Lower runout means your cutter rotates closer to its true centre, helping reduce vibration, improve surface finish and increase tool life.

Collet Precision Maximum Runout (TIR) Relative Runout
20 Micron ≤0.020 mm 4× Higher
15 Micron ≤0.015 mm 3× Higher
10 Micron ≤0.010 mm 2× Higher
5 Micron Precision Collet ≤0.005 mm Highest Precision
The Benefits of 5 Micron Precision
More Even Flute Loading Helps distribute cutting forces more evenly.
Reduced Vibration Less runout helps reduce vibration and chatter.
Greater Accuracy More consistent and repeatable cutting results.
Cleaner Finish Improved cutter rotation for a smoother finish.