Greenlee DTAPM3C Drill / Tap Bit M3 x .50

Using the Greenlee DTAPM3C drill/tap bit is easy. First, attach the bit to your power drill using the 1/4' quick - change hex shank. Make sure it's firmly connected. You can then start your drilling and tapping operation on materials like mild steel, copper, brass, or aluminum, up to 10 - gauge thickness. Just one operation with the power drill will handle hole drilling, tapping, deburring, and countersinking. When using, avoid over - drilling to prevent thread damage, thanks to the back - tapered design. As for maintenance, after each use, clean the bit to remove any debris. Store it in a dry place to prevent rust. This high - speed steel bit is durable, but gentle handling will ensure it serves you well for a long time.