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™ Face 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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