(Cincinnati, OH) – Heule Precision Tool presents COFA tooling for automated through hole deburring applications, including those on sloped or uneven surfaces. This unique technology uses a carbide blade to remove burrs from the front and back of a drilled through-hole in a single pass, without stopping or reversing the spindle. The edge break is always even and consistent – across a wide spectrum of metals and alloys – whether the surface is even, elliptical, or sloped. Automating the deburring processes for hard-to-reach cross burrs which were formerly deburred manually, significantly shortens cycle times and improves efficiency. Carbide blades extend tool life and maintain edge sharpness, reducing downtime. COFA tooling performs well in both manual and CNC environments, as well as live-spindle lathes, and robotic automation cells—operating reliably with or without cutting fluid. A variety of sizes, from 2-30mm (0.79-1.19”), are available from stock for immediate delivery from the Cincinnati area warehouse. COFA tooling is ideal for a wide range of applications with aerospace, automotive, energy, precision machining, heavy equipment, and medical industries.
Simple, Reliable Operation
Controlled by a simple spring, the carbide cutting blade follows the contour of the hole’s surface, removing all burrs while creating an even tapered corner break. The blade does not cut as it passes through the bore and will not damage the hole’s surface. The edge break begins only at the point where the blade contacts the material and then tapers the hole’s edge. This allows for faster feed rates since the tool slows itself down as it enters the through hole. The simple concept of the COFA tool has no adjusting screws or presetting requirements. Available in common tool size and spring strengths for various materials and hole sizes.
A wide range of COFA tooling is available, including COFA C for threaded holes and COFA Cassette for deburring larger bores quickly and efficiently. Custom designs are available to match unique deburring geometries and process needs, Additional information on Heule COFA tooling, including case histories, can be found at https://www.heuletool.com/tools/deburring-chamfering/cofa/.
Heule Precision Tool, located in Loveland, OH, supports a wide range of hole-finishing tools for front and back deburring, countersinking, chamfering, and counterboring for larger industrial manufacturing companies throughout North America. They specialize in high production environments in the automotive, aerospace, energy, and medical industries. Their parent company, Heule Ag, located in Balgach, Switzerland, has manufactured the highest quality cutting tools in the world since 1961. For additional information, visit www.HeuleTool.com, or call (513) 860-9900, or via email to info@HeuleTool.com.

