Think & Tinker, Ltd.
CNC router bits and carbide cutting tools with tutorials and technical guides
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ISO 20 ER Collet Toolholders (for Colombo spindle automatic tool changers, shipped with collet nuts and pull studs)

  • Balanced to 40,000 RPM @ G2.5 (Inspection Report included for accuracy and balance)
  • Internal (collet) Taper : 8┬░
  • Surface Roughness Rz 2.5
  • Degree of concentricity exceeds the DIN standard. 100% examined to 0.0002" TIR
Ultra-precision ISO 20 Toolholder

Get $5 off shipping on Web Orders over US$50!
Item # Description Unit Price Enter Qty.
ERUP-ISO20-ER16M  ISO 20 x ER 16 - 52mm Ultra-precision Toolholder (incl. coated HS mini nut & stud)   $185.00 
ERUP-ISO20-ER20A  ISO 20 x ER 20M - 52mm Ultra-precision Toolholder (incl. pull stud & ER20-A nut)   $185.00 
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Open Monday - Friday, 08:30 to 16:30 Mountain Time.

Most orders received before noon ship within one business day,
subject to credit approval and item availability.
Orders with different billing and shipping
addresses may be delayed for address verification.