Accurately drill, tap, deburr and countersink with the simple and easy-to-use yet powerful Tap Bit Set. With the high-quality and long-wearing Tap Bit Set, no project is too big or too difficult to get done. For use on wood, concrete or even up to 10-gauge mild steel, it’s safe to say that theTap Bit Set is the only bit set you need to complete any job quickly and efficiently.
Features: HSS 4341 SAE combination tap and drill bit set. All-in-one and multi-functional. Back tapered beyond tap to prevent thread damage from over drilling. An essential hardware tool for woodworking using. Suitable for drilling & tapping wood, plank, aluminium plate or sheet iron. Include 6 sizes in one drill bit set(10-32NF, 8-32NC, 6-32NC, 10-24NC, 12-24NC, 1/4-20NC), to meet your different needs perfectly.
NOTE: The speed can not be high up to more than 300rpm when tapping! Otherwise, it's easy to be broken. Pay attention to the operation skill, too much shaking and tilt will affect tapping, even break off the screw tap!