【Widely Application】：5 different sizes (3mm,4mm,5mm,6mm,8mm) meets your different working need. Widely use on various kinds woods for DIY crafts, wood carving, rootcarving, modeling, pet house making, house repair, micro sculpture and other wood working, a must-have carving tool to create your own masterpiece【High Speed Steel Material】：Made of high speed steel material, durable and sturdy for you to use, and not easy to break, offer nice cutting power and durable; These burrs are intended for faster wood removal, you can easily work with woods more faster while leaving a smoother finish【More Efficiency】：Carving bits with tricuspid design- accurate centering for sharp and precise countersinking. Ideal for fine work such as deep grooves, v-slots, curve patterns & lines. Three blade design can fast discharge chips from the hole on sides automatically, suitable for carving, engraving, grinding, drilling and more, and leaving a smooth finish surface without damaging wood【Easy To Use】：1/8” shank works with Dremel and most rotary tool, drills and die grinders. Simply attach it into a drill, convenient and easy to use, which allows you to carve wood effortlessly and Safely. Suitable for beginners, professional and handicraft enthusiasts【100% Quality Guarantee】：Buy with confidence, if there is any issue, please feel free to contact us, we will be happy to provide you with a solution or replacement and sincere apologies. Thank you very much for your tremendous support!