Spring Collet Set CNC Chuck


SKU: ER11/ER16/ER20 Categories: , ,


  • This is a set of spring collets made of high carbon steel. It is for CNC milling tool & workholding engraving machine.
  • This model is a standard precision chuck with an accuracy of 0.015-0.02mm.
  • It features good elasticity, high precision and specially angled slots increase rigidity.


  • Color: As shown
  • Material:40cr
  • ER11 Collets(15pcs/set) 1-7mm(1,1.5,2,2.5,3,3.175,3.5,4,4.5,5,5.5,6,6.35,6.5,7)
  • ER16 Collets(21pcs/set)1-10mm(1,1.5,2,2.5,3,3.175,3.5,4,4.5,5,5.5,6,6.35,6.5,7,7.5,8,8.5,9,9.5,10)
  • ER20 Collets(28pcs/set) 13mm(1,1.5,2,2.5,3,3.175,3.5,4,4.5,5,5.5,6,6.35,6.5,7,7.5,8,8.5,9,9.5,10,10.5,11,11.5,12,12.5,12.7,13)
  • Use the high carbon bearing steel , heat treatedrigidity is HRC48°-50°
  • The inner bore processing by high precision grindingaccording to DIN standard.
  • Use for clamping screw tap, drill , milling cutter, reamer and so on.
  • Having tension and compression function, brilliant and changeable.


Please note: We sell to businesses for bulk order quantity please contact sales@bulkman3d.com for special distribution pricing.

Additional information

Weight 2 kg

ER11, ER16, ER20