Welcome to Masa Tool - Home of the Microconic system

Masa Tool has developed the Microconic™ system specifically for holding workpieces from Ø0.15mm to 10mm (Ø0.006" to 0.390") in any machine that has a collet-type chuck.

The system consists of two major components: The Microconic cartridge, which fits into your CNC machine  spindle replacing the standard 5C, TF15, TF16, TF20, TF25 or TF37 collets, and the Microconic collet, which fits in the Microconic cartridge.

The Microconic™ system has unsurpassed concentricity: We guarantee  our system to not add more than 5µm (0.0002") runout in production use.

The Microconic™ system is available for draw-type or push-type standard collet systems that are in many machines.

​The Over-grip collet capabilities of Masa Microconic™ System introduces a whole new world of time saving opportunities.  Our over-grip collets open up to 4.5mm (0.176") diameter larger than the clamping diameter.  

F15M5, F16M5  introduced
​at IMTS 2022

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NEW smaller size Microconic F15 & F16 Cartridges and UM5 Collet Series for Swiss Workholding. Click the image for more info
Industries Served
Our collets are used  to manufacture an array of products, including
  • aerospace
  • automobiles
  • business machines
  • defense
  • electronics
  • fasteners 
  • fiber optics
  • firearms
  • medical devices
  • medical implants
  • tools
  • valves
The Microconic™ system consists of the cartridge, which fits into your machine like a standard collet, and the Microconic collets which fit into our cartridge.
  • Every Microconic cartridge comes standard with extended nose  for unsurpassed rigidity because of it's single piece construction.
  • The Microconic cartridge can be used as a gauge to verify machine spindle accuracy.
  • Micrograd™ Dial Wrench allow you to set your collet clamping pressure. Now, even the most fragile parts can be held safely and firmly.
  • Extreme accuracy. Microconic cartridge  concentricity is guaranteed to be within 5µm (.0002") runnout.
  • Microconic collets are hardened and precision ground to the highest quality standards.
  • Regular 10mm collets are available from Ø0.2mm (.008") to 10mm (.394").
  • Over-grip 10mm collets from 0.5mm - 7.2mm diameter (0.020" - 0.283"). 
  • Over-grip 10mm collets open up to 4mm (0.157") diameter larger than the clamping diameter.  Some restrictions apply to larger sizes approaching the   7.2mm (0.283") max diameter.
  • Microconic Over-grip Collets have unmatched rigidity and concentricity. If you have tried over-grip collets from other manufacturers then you will be shocked at the difference.
  • Now you can use the same collets in TF20, TF25, and 5C sub spindles! Microconic™collets  permit interchangeability between machines! The Microconic™ collets fit in any Microconic™ cartridge, no matter collet system is in the machine.​ 

View our Catalog below or Download it!

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