Cogsdill Bottle Boring / Back Boring with O'Ring pilot support

Here at Cogsdill we make boring, well... Interesting Cogsdill Bottle Boring Bottle boring, also known as internal profiling or chamber boring is a special cutting operation where the boring tool expands and contracts within an existing bore to produce a contour inside the workpiece. In this video, we see the Cogsdill MBT (Modular Boring Tool) 'Back Boring' a diameter and taper, whilst maintaining full support from the O'Ring piloted support. This technology enables the manufacturer to machine complex internal shapes, sophisticated bore transitions and undercuts, that reduce the overall weight of critical components without compromising surface integrity. These characteristics are generally too deep or too complicated for single point boring bars. The internal hole profile is larger within the part than at the entry or exit diameters, therefore CNC controls are necessary for coordinating multiple axes simultaneously to create the desired profiles. Because the Cogsdill MBT tool is supported with a PROVEN pilot system, either utilising a rotating O’ring pilot assembly, as shown in this example, designed to keep coolant and chips away from the tool body or via coated carbide wear pads, both styles ensuring a vibration free operation, with superior surface finishes. #boring