Collet Clamping Bores

The clamping bores in collets are manufactured plain, grooved, or serrated depending on the application. Typically, grooved or serrated bores are used from a certain diameter onwards. In addition to square and hexagonal bores, collets can be supplied with custom profiles as required.
The collet holder plays a critical role in determining the concentricity of the collet.
Therefore, during inspection, it is essential to ensure that the collet holder runs perfectly true.

Quality & Accuracy

Every collet undergoes careful inspection after manufacture, with special attention to concentricity and measurements taken at the nose of the collet.
We offer two accuracy grades of collets:

• Standard Concentricity – Adequate for most machining applications.
• High Precision Concentricity – Required for demanding applications such as precision grinding, measuring machines, and other high-accuracy equipment. This grade is available at a premium price.