The F-type collet, specifically the 104 variant with a straight sliding face, is a specialized work-holding component primarily used in high-precision machining environments like Swiss-type CNC lathes and multi-spindle automatics. Unlike standard pull-back collets (where the collet moves axially during clamping), the F-type is a "dead-length" collet, ensuring the workpiece remains stationary.
The "104" designation refers to the specific series dimensions (often standardizing the shank diameter and length). The straight sliding face (or straight shoulder) design is critical for applications where the collet must interface with a specific guide bush or sleeve without causing axial displacement of the part.
Small Component
Manufacturing
Ideal for dental implants, watch parts, and miniature aerospace
connectors.
High-Volume Production
Used in Cam-controlled and CNC automatic lathes (e.g., Tornos, Citizen, or Star machines).
Secondary Operations
Often used as a "pick-off" collet to grab a part from the main spindle for back-working
without losing the zero-point.
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