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3Pcs CAT40 Tool Holder ER20 Collet Chuck Set length 4'/100mm Chuck Tool Holder Set Mill Holder for CNC Engraving Machine Milling Lathe(CAT40-ER20-100)

4.3 (1) Write Review
Free shipping on orders over $29.99

$41.25

$ 17 .99 $17.99

In Stock

About this item

  • Set of 3 high accuracy ER20 collet chuck
  • Gage or projection length of ER20 is 4"(100mm)
  • Accuracy in 0.0001-0.0002" max
  • Fully ground flange and V-groove-easy on tool changers for less spindle
  • Fit for Drilling Machine ,Milling Machine CNC Chuck or Holder.


This set including 3 pcs CAT40-ER20 collet chucks, 4" longer gage length.

Accuracy Dynamic Balanced to G6.3/12000RPM

Real measurement over 15000RPM 0.0001" Runout


Dav
August 31, 2025
Checked run out and they are running about .0015-.002 out just below the collet.Absolute garbage
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