Reconditioning is the process of restoring a used carbide cutting tool, such as a high performance solid carbide drill bit, to like-new condition. You may be more familiar with drill sharpening, or regrinding, but that is only one step in the process of reconditioning. Properly sharpening a carbide drill bit involves the four basic steps listed below...

Tool Identification: Today there are a multitude of drill point designs, which creates myriad opportunities to misidentify a drill point. At Performedge, we are highly trained on correctly identifying all major brands of drill points and the various coatings that are used.

Regrinding: When carbide drills are resharpened, a new point is ground onto the end of the tool. At Performedge, we take great care to assure that the new point meets the OEM standards. We also thoroughly examine the tool for thermal cracks and other types of damage that may cause a field failure. If we find such damage we continue to grind until a quality point is achieved.

Edge Preparation: Carbide drills generally do not perform very well if the cutting edges are left sharp. At Performedge, we are highly trained on applying the right edge preparation to each drill. This may consist of a t-land or a hone or both. We do whatever the OEM specifies or we can even modify the edge prep to improve performance.

Recoating: Most high performance carbide drills have a PVD coating which increases their tool life. At Performedge, we recoat nearly 95% of all the drills we receive. We are located within minutes of Balzers Tool Coating Service who are leaders in the PVD coating field. They provide us with fast turnaround and excellent quality day after day. TiN, TiCN, and various forms of TiAlN are available from Balzers.

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