Spring Collet Set ER20 High Precision Chuck Engraving Lathe CNC Machining Center

  
Spring Collet Set ER20 High Precision Chuck Engraving Lathe CNC Machining Center. Ground Roughness is Ra0.4 Microns, plus overall fine polish. Gripping Range: 1 mm, 2 mm, 3 mm, 4 mm, 5 mm, 6mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm, 13mm, 1/8mm, 1/4mm. Suitable For: Boring, milling, drilling, tapping, engraving, CNC, spindle machines, and other processing. 1 x Spring Collet Set.