ER Type Collets
From £11.90 ex VAT
A wide selection of metric and imperial ER type standard collets. These can be used with a wide range of spindle types including Perske, Elte, Colombo and HSD.
It is essential to use the correct size collet for the tool shank diameter. First make sure you are looking at the right type of collet to fit the spindle on your machine and then select the required size from either the metric or imperial range.
Use the table below to select the right size of ER collet. The example spindles shown are just a small selection of where these collets can be used. Even if your spindle is listed the best way to check compatibility is to compare the dimensions in the table with one of your existing collets.
| Collet Type | D1 (mm) | L (mm) | Example Spindle Types |
| ER16 | 17 | 27.5 | Colombo RC73, 1.5kw (2HP) |
| ER20 | 21 | 31.5 | Perske KRS35 (1/2" capacity), 1.2kw, 1.7kw, Colombo 2.2kw (3HP) |
| ER25 | 26 | 34 | Elte TMPE3 & TMPE4*, 2.2kw (3HP), 3.7kw (5HP) Colombo RC90, 4.1kw (5.5HP) |
| ER32 | 33 | 40 | Elte TMPE4*, TMPE5, 3.7kw (5HP), 4.5kw (6HP), 7kw (10HP) HSD 4kw (5HP), 7kw (10HP) Colombo RC110, 10kw |
* Most TMPE4 spindles use ER32 collets but some may require the ER25 size. Please check the dimensions of your existing collets to verify whether you need to order ER32 or ER25.
Collets should be replaced every 3-6 months. This will avoid problems associated with worn collets including:
- poor cut quality
- reduced tool life
- premature tool breakage
- tools working loose whilst cutting.