Adjustable drill bit: The drill bit stop ring is designed for precise control of drilling depth, allowing you to achieve consistent and accurate results in woodworking projects Wide adjustable range: The inner diameters of these three drilling depth stoppers are 3-5mm, 5-8mm, and 8-13mm respectively, providing you with the versatility required for various drilling tasks Reliable materials: These adjustable drill bit rings are made of ABS plastic, which is durable and wear-resistant, ensuring long-lasting performance Easy to use: Simply fix the drill bit stop ring on the drill bit to achieve the desired drilling depth. It can be easily adjusted to adapt to different drilling depths and is convenient to use Accurate and consistent results: By using drill bit limit rings, you can accurately control the drilling depth without causing any damage to the drill bit, ensuring the uniformity and accuracy of drilling operations, Weight: 0.04629707502 Pounds, Manufacturer: Zambuph