Autofacer: The World Leader in Automatic Back Counterboring Tools

The Autofacer is an ingenious automatic back counterboring tool that allows a machinist to reach through a hole and machine a circular feature* on the back side of the part automatically. This is accomplished by folding the cutting blade into the shaft of the tool body allowing the tool to pass into the part. Once the tool has entered the part, the cutting blade is mechanically opened and cutting may begin.

Steiner Technologies is the OEM of the Autofacer since 1968 and we continue to be the world leader in automatic back spotfacing and back counter boring tools.

* Circular features might include a spot face, counterbore, countersink, chamfer, spherical radius, or some combination thereof.

Autofacer Activation Methods

Check out our KA Series Autofacers

Specifically Designed for the Oil & Gas Industry
Specialized Autofacers for Machining Seat Pockets and Clearance Bores on Subsea Gate Valves
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Need an Autofacer In a Hurry?

Check out our Line of In-Stock Flywheel Autofacers

Save Time, Decrease Cycle Time

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Need an Autofacer In a Hurry?

Check out our Line of In-Stock Flywheel Autofacers

Save Time, Decrease Cycle Time

Click Here to Learn More
  • Extreme reliability of part processing, due to a friction-type clutch that mechanically opens and closes the cutting blade.
  • Can perform heavy interrupted cuts, with cutting blades that are mechanically held open during cutting.
  • Utilizes the part hole to support the tool while cutting, enabling the operator to run the Autofacer at carbide speeds and feeds even at long length-to-diameter ratios.
  • Available in many different configurations, depending upon your application needs.
  • Maximize time savings. Our full-service grinding department allows us to offer custom geometries on our indexable inserts and brazed carbide cutting blades, meaning we can combine multiple operations into a single blade to save time.
  • Reduce part process time by up to 80% or more
  • Extreme reliability of part processing
  • Eliminate costly secondary operations
  • Enhance machine/operator safety by automating manufacturing processes
    Performance is 100% guaranteed
  • Autofacer has a wide range of activation methods available depending upon your specific needs.
  • The best-fit activation method largely depends on the machine tool that is being used, along with your production quantities.
  • Application Engineers at Steiner Technologies, Inc. will select the appropriate activation method to ensure optimum performance.
  • The more demanding the application, the more you will benefit from the speed and automation that the Autofacer provides.
  • Automotive
  • Aerospace
  • Power generation
  • Heavy equipment & locomotive
  • Marine
  • Pump & Valve
  • Defense

The 5-Step Steiner Process, At-A-Glance

Video Demos

What do Steiner solutions look like in action? Access our video library for live demos.

Case Studies

It’s not enough to simply say that Steiner increases part profitability by: reducing part process time by 80%+, eliminating costly secondary operations and automating your processes. Take a look at these real stories of customer outcomes: