The IDEAL® line of combination drill taps combines the tasks of drilling, tapping and deburring all into one. Providing an economical way to save you valuable time on the project. constructed out of high speed steel (HSS) providing strength and durability, the bit has balanced hardened tapping edges with 1/4 in hex shank that makes it compatible not only with cordless drills but also impact drivers. Similar to the IDEAL® TKO™ carbide tipped hole cutters we have incorporated the SmoothStart™ tip which minimizes thread damage and extends the life of the bits. While traditional drill taps have single or double flute design, IDEAL® drill taps come with 3-flute design providing faster chip removal and minimizes binding while drilling. The deburring cutting edge provides a clean hole and prevents over drilling. Rated for drilling and tapping up to 10 ga mild steel, aluminum, copper, brass and even plastic. When it comes to quality, performance and durability, IDEAL® is the professionals choice for drill tap needs.