An ER collet set as an example ranges from 10 to 20 collets which is normally accompanied by a collet and a wrench, single nut, and a single nut. The ER20 set for example has collets from 3mm to 16mm with step of 1mm. Different from other manufacturers, our collets are precision grinded for constant clamp force which makes them easy to label and enables quick changes. Industrial sets have such features as Ni-P coating for long term protection against harsh workshop conditions and other off storages.
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