21Pcs ER32 Spring Collet Set 1-21MM for CNC Milling Lathe Chuck Tool

  
Gripping Range: 2-20mm (2mm, 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm, 13mm, 14mm, 15mm, 16mm, 17mm, 18mm, 19mm, 20mm, 21mm,). ER25 Exactness spring collets are used for milling, drilling, tapping, engraving, CNC, spindle machines, and other processing. (2mm, 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm, 13mm, 14mm, 15mm, 16mm, 17mm, 18mm, 19mm, 20mm, 21mm,).