F20 Collet Standards and Dimensions (F20 136E – F20 138E)
When it comes to F20 collets, there are two main standards: F20 76-87 and F20 76-201. These standards differ in collet length, front face dimensions, and the maximum diameter angle. Selecting the correct collet is essential to ensure precision, stability, and full compatibility in modern CNC machining and Swiss-type turning operations.
Key Features of F20 Collet Standards
F20 76-87 → Designed with accurate front face dimensions, making it ideal for high-precision turning.
F20 76-201 → Provides alternative measurements, especially in collet length and angle, to suit different machine setups.
Because these standards vary, it is important to check your machine’s specifications carefully before choosing the correct F20 collet standard.
Machines Compatible with F20 Collets
F20 collets (F20 136E – F20 138E) are widely used in leading Swiss-type CNC machines and automatic lathes, including:
Gildemeister Speed 12-5/7 Swiss-type machine
Citizen M2 16 Swiss-type machine
Hanwha SL16S/H Swiss-type machine
Star KJR 16 Swiss-type machine
Tornos ENC16 Swiss-type machine
Traub TNL 26 series CNC machine