Roll-a-Finish® tools for all types of part configurations

Cogsdill Roll-a-Finish tools are applied to a wide variety of part configurations, including:

• Inside diameters (holes)
• Outside diameters (shafts)
• Flat surfaces
• Tapers
• Spherical surfaces and contours
• Fillets (radii at shoulders)

Standard Roll-a-Finish tools are available from stock for inside diameters from .157 to 1.968 inches (4.00 to 50.00mm), and for outside diameters from .059 to .787 inches (1.5 to 20.0mm). The tools are easily adjustable over a typical range of .040 inch (1.02mm). Special designs are available for larger and smaller diameters, and for tapers, faces, contours, and virtually any part configuration.

Bearingizing Tools

The Bearingizing Tool combines roller burnishing with peening action. As the tool is rotated at a high speed the rolls spin, rise, and fall over a cammed arbor, delivering up to 200,000 rapid fire blows per minute to the work surface. The peaks and valleys of the machined surface are compacted into a smooth, hardened, and ultra fine surface finish.

The Bearingizer may be the tool of choice where the following conditions exist:

• Parts with thin walls
• Parts with irregular wall thicknesses
• Applications where porosity is an issue
• Applications where very tight tolerances must be held

External Roller Burnishing Machines

Cogsdill’s CX machines roller burnish cylindrical diameters of any length in seconds.

Parts are sized, finished and work hardened by highly polished, precision rollers in one quick pass.

Fatigue life, corrosion resistance and appearance are enhanced as your parts are accurately sized and finished. Various model options are designed to meet your manufacturing requirements. Equipment options are available to accommodate through-feed applications, parts with obstructions, and part-to-part size variations.

Diamond Burnishing Tools

Precision tool for producing low microinch finishes on shafts or faces of any diameter, or on large bores.

• Four designs allow use on most turning machines, manual or CNC
• Replaceable, polished diamond insert
• Adjustable for optimum burnishing pressure

Cogsdill Diamond Burnishing Tools are simple, efficient tools designed to produce mirror-like finishes on a wide range of ferrous and nonferrous part surfaces on most turning machines.

Set up and cycle times are short, even for unskilled operators. In all cases, the replaceable diamond insert can be changed quickly; on some models without removing the tool holder from the machine.

Universal™ Burnishing Tools

Cogsdill Universal™ Burnishing Tools are designed for burnishing shafts, faces, tapers, contours, and relatively large IDs (greater than 2.750 inches/69.85mm).

• Boring-bar style and Indexable turning-holder style designs
• Turning-holder styles available with force gauges
• Tool designs to suit any part size or configuration, or any turning machine
• Low surface finishes
• Standard, available off-the-shelf
• Adjustable for optimum burnishing pressure
• Hardened steel or carbide rollers