The extensions with collets are for tools with diameters from 1 to 6 mm. The outside diameter is only 14 mm and the run-out accuracy is less than or equal to 8 micrometers. If the extension is used with the company's APC precision chucks, the total run-out error can reportedly be optimized to less than or equal to 5 micrometers. This combination apparently achieves a working depth of around 200 mm. Both the chucks and the chuck extensions offer the option of a peripheral or central cooling. A hex-key that is included allows easy opening and closing.
Chuck extension for difficult-to-access areas
For operation areas that are not easily accessible, Albrecht recommend their Micro-Chuck AMC extensions. Their long and very slim design is said to offer very good preconditions to apply different tools economically even in the narrowest of spaces.