CNC drill bits for cutting wood usually have their own specifications that distinguish them from metalworking varieties. They may require less sharpening and usually require less force to create the holes. These drill bits are commonly found in CNC lathes and milling machines for efficient high-volume or repetitive carpentry operations. Some common woodworking drill bit categories include:
Flat drill: This drill has a flat blade and a sharp center point or helical thread for quick drilling. Due to the risk of drifting when thick materials are drilled, flat drill bits are typically connected to a pumping device that blows away excess sawdust.
Pin Drill: Pin Drill is a variant of the standard twist drill design. It has a sharp center point that improves its accuracy and two adjacent cutting spurs, helping to drill holes quickly and accurately. As with indexable drills, pin drills can be equipped with special inserts to further improve cutting balance.