Model 301E Portable Tube squaring machine

Dependable performance and ease of use, combined with agility, light weight and rapid cycle times make this venerable tool the machine of choice for advanced tubing system fabrication and maintenance. The Model 301 incorporates incremental feed graduation control for squaring to precise lengths. It produces precisely square, burr free ends on thin wall tubing in preparation for autogenous tube welding.

The cutting head accepts squaring bits or a combination of a squaring and a beveling bit. A variable speed electric drive and the ability to perform without damaging the inside of electro-polished tubes makes this tool the ultimate choice for clean room applications. Decreasing rate cam feed and feed graduations guarantee repeatable accuracy and consistent tube lengths.

Like many Tri Tool machines, the Model 301 can be fitted with accessories such as the QC quick collet for higher production. The machines can be bench mounted with an optional base plate and is available with either electric or pneumatic drive.


  • 0.125” to 1.10” OD (3.17 to 27.9mm)
  • Wall Thickness Up To 0.125” (3.17mm)
  • Variable speed AC & three speed variable DC drive
  • DC drive features audible tone control for consistent feed
  • Full Contact Collet Eliminates Tube Deflection
  • Patented Cam Feed for Smoother Operation
  • Bevel, Squaring, ID Chamfer
  • Preparation on mild, chrome, stainless, copper-nickel alloy, aluminum
  • Special procedures for: inconel, other high temp alloys
  • Straight Tube
  • Weight 6.75 lbs (3.1 kg)
Over the years, the field proven Model 301 tube squaring machine has set the industry standard for precision and portability. The compact Model 301 provides full support, OD-mounting, self-centering collets and will square .125″ (3.2 mm) to 1″ (25.4 mm) OD tubing with up to a .125″ (3.2 mm) wall thickness. Precise end preps are easy to accomplish on a wide variety of materials including steel, stainless steel, titanium, Inconel®, copper, aluminum, and plastic with the patented Auto Retract feed system which automatically retracts the bit when the feed handle is released, readying it for the next cut. The cutting head accepts a squaring bit or a combination squaring and beveling bit. Variable speed electric drives and the ability to work without damaging the inside of electropolished tubes makes the Model 301 a perfect companion to orbital tube welding. A powerful cordless 14.4 variable speed drive is offered for the Model 301DC for remote cutting where AC power is not available or practical. The Model 301 can be configured with an optional Quick Lock single-throw clamping system that allows rapid cycle times and easy collet size change-over. The Quick Lock system can be retrofitted to all Model 301 machines that utilize the collet nut clamping method.