The Cogsdill Ellipti-bur is designed for deburring irregular hole surfaces, such as those which are generated by drilling into curved surfaces, or by drilling at an angle. 

The Ellipti-bur enables the user to perform these difficult deburring operations quickly and accurately,

 without having to use jigs, fixtures or special operator skills.

As the pilot of the tool is located in the hole, the tool is seated and centred, as the tool is advanced, the pilot is forced into the tool body against the shank spring, and the blade comes into contact with the edge of the hole. 

As the tool continues to advance, the pilot is further pressed into the body and the Cutting edge

is driven into the workpiece.

The blade remains free to react to the irregular surface geometry of the hole, allowing for both radial and axial displacement - radial displacement resulting from the elliptical shape of the angularly drilled holes, and axial displacement (Rise and Fall) from the saddle shaped configuration of the holes drilled in cylindrical surfaces.

This automatic self guiding feature produces a relatively uniform break on the edge of the hole.

Please Click on the image below for the ELLIPTI-BUR tooling section of our Deburring Catalogue.

  lee.donaldson@cogsdill.co.uk

Mobile 07770 994162 

  Burraway burroff microlimit back spot face tooling - deburring tools designed and manufactured by Cogsdill