Erickson™ Quick Change Flange Shank Tooling System •
QC30 Series
With an Erickson QC locknut retrofitted to manual-loading milling machine spindles, the Erickson Quick Change Flange
QC Taper Tooling can be used as a quick-change system. These tools are manufactured from premium materials
and meet or exceed the latest ISO-1947 taper accuracy. The QC30 tools are balanced-by-design and will perform
effectively up to 8,000 RPM. For any applications higher than 8,000 RPM, WIDIA™ recommends that the complete
toolholder assembly (toolholder, collets, hardware, and cutting tools) be balanced as one identity.


QC30
• 7/24 taper, interchangeable with NMTB and DIN2080 shank tooling.
• Hub at the tail end of taper cone houses the machine’s drawbar bolt, standard 1/2" – 13 UNC – 2B thread.
• Flange faces are precision ground to accommodate Erickson QC locknuts.
• Taper accuracy of AT4 specification or better.
• Maximum 8,000 RPM.
• Maximum 100 bar (1,500 psi) coolant pressure.
2 drive slots at 180º opposed.
• Equal width.
• Equal depth.


Single flange for fitment into
Erickson Quick Change locknut.
Inch drawbar thread.
QC Quick Change (NMTB)

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