Abstract: A traction control device and the method of making the same wherein the device has contact surfaces, typically formed from polycrystalline diamond compacts inserted into a base, and where the inserts, and in some embodiments the base, are machined or cut to induce profiles for enhanced gripping and improved wear characteristics.

Abstract: A new drill insert product and the method of making the same are provided. This invention makes use of a multi-metal region bonded to the top (cutting) surface of a superabrasive layer to improve drill life, decrease the propensity for delamination and to avoid crack initiation sites in the drill insert product. This invention makes use of an inner can top composed essentially of niobium, which, under the compression pressure of an ultra high pressure press, bonds to a molybdenum disk, thereby providing improved tensile strength, abrasion resistance, bonding strength, as well as improved control over the cutting surface flatness. By using the inner can top, this invention improves process efficiency, while reducing manufacturing complexity and waste.