Rust resistant brass depth stop collar locator ring with a smooth surface provides durable, reliable depth control Size options 5 mm, 6 mm, 8 mm, 9 mm, 10 mm Compatible with a range of drill diameters and drill types, including wood drills and glass drills Key benefits Precise depth control to prevent overpenetration and material damage Repeatable results across multiple holes and projects Durable, rust resistant brass construction for long service life Easy to set and adjust with standard drill bits How to use Select the appropriate size based on your drill diameter Loosen the limit ring screw Slide the limit ring onto the drill bit handle Set the desired depth and tighten the screw Applications and use scenarios Woodworking: drill pocket holes or hardware holes with a consistent depth for dowels or fittings Glass or tile drilling: control penetration depth to avoid cracking or breakthrough General drilling tasks: achieve uniform hole depth across multiple workpieces for cabinets, shelves, or assemblies Material and performance Brass construction offers rust resistance and durability Designed for compatibility with standard drill bits and common drill types Notes Ensure the selected size matches the drill diameter for accurate depth stopping Tighten the screw securely after setting the desired depth to maintain accuracy during drilling