Features: - Top-Grade Aluminum Alloy Material: This drill stop is crafted from high-quality, lightweight aluminum, which offers superior hardness, wear resistance, and high-temperature resistance, ensuring a long service life. This metal drill stop outperforms plastic alternatives in durability and sturdiness. - Secure and Stable: The drill bit limit ring set offers excellent control over the drilling depth without damaging the drill bit. Its unique design includes a nylon inner ring for secure locking without loosening, effectively preventing wear on the drill bit's locking part, which makes these depth limiting rings ideal for both professionals and DIY enthusiasts. - Adjustable Inner Diameter: The drill stop's inner diameter can be adjusted to accommodate drills of various sizes accurately. The large size caters to bit widths from 15/64'-7/16' (0.23'-0.43'), and the small size accommodates bit widths from 5/64'-3/16' (0.078'-0.18'). - Precision Drilling: With quick adjustment capabilities, this tool allows for precise control of drilling depth, resulting in faster and more accurate drilling. This convenience makes your woodworking tasks easier and more efficient. - Wide Application: This versatile drill stop can be used in a variety of materials such as wood, metal, plastic, and brick, and is perfect for tasks like furniture installation and ordinary tile work. Specifications: - Material: Aluminum - Finish Type: Aluminum - Shank Type: Straight - Large drill stop size: For bit widths 15/64'-7/16' (0.23'-0.43') - Small drill stop size: For bit widths 5/64'-3/16' (0.078'-0.18') - Quantity: 2PCS Package Included: - 2 x Drill Stops