Precise Dimensions: with a shank and tip diameter of about 1/8 inch, a total length of about 2.35 inch, and a cutting depth of about 3/4 inch, we that our drywall router bits are the right tool and provide the ideal grip during use. Efficiency and Accuracy: the tip guide points no damage to your socket box, and the four-sided tip design makes the drywall bit more stable when drilling, reducing offset and vibration; This improves the accuracy and quality of the drilling while maintaining an efficient, accurate, and stable milling operation. Reliable Materials: made of M2 high speed steel, these drywall cutting tools are designed to withstand high pressures and loads, ensuring impressive reliability and sturdiness; They that these heads not easily break or deform even at high pressures, thus giving you a long service life suitable for this reliable tool that makes your tasks efficient. Wide Applications: these drywall drill bits are designed for versatility, capable of cutting a range of materials including drywall, outlets, , soundproofing bricks and more; Whether you're cutting around outlet boxes, frames, or canned lights, these tools have you covered. Sufficient Quantity: the package includes 50 four-sided drywall bits to an adequate supply for your projects and jobs; This underscores our commitment to providing reliable tools for your long-term use. Multiple purpose: Our drywall rotary bits are suitable for cutting through electrical boxes, air vents and other wall features, cutting wood, plastic, fiberglass and vinyl or aluminum siding, gypsum board, making them a multipurpose tool in your kit. Easy to use: The design of our drywall bits accommodates use with rotary tools. By simply attaching these bits, your rotary tool transforms into a powerful cutting machine. Their design allows for easy, controlled cutting and fast, accurate cuts. Size: Tip diameter: about 1/8 inch Total length: about 2.35 inch Cutting depth: about 3/4 inch Colour:Silver Material:Metal Package Contents: 1set * drywall cutting tool(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.