This set of guided cutting bits is made of high-quality M2 high-speed steel, , not easy to break or deform under high-intensity work, wear-, rust- and , suitable for this kind of drywall cutting tool, which will make your woodworking tasks efficiently completed. This cutting drill has a diameter of about 1/8 inch and a cutting depth of about 3/4 feet. It cuts sharply and has a significant cutting effect. The cutting size ensures that it matches your tool, creating the ultimate cutting experience . The guiding point of the side cutting blade can be tracked to that it will not cause damage to the socket box, while achieving efficient, accurate, and stable milling operations, taking your woodworking operations to level. These cutting drills are not only designed for cutting drywalls, but also have a wide range of applications. They can be used to cut various materials, such as drywalls for electrical boxes, ventilation openings, and other wall features, as well as wood, plastic, or aluminum wall panels and gypsum boards. This tool can meet your needs. Colour:As Shown Material:Metal Package Contents: 1set * Dry Wall Cutting Tools(50pcs) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.