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