Drixet Drill Stop Bit Collar Set - Purpose and benefits: Helps you drill holes to exact depths quickly and easily. Ideal for production work and repeated drilling. The collar can be locked anywhere along the bit with the built in locking screw for consistent results. - SPECIFICATIONS: Various sizes 1/8 in, 3/16 in, 1/4 in, 5/16 in, 3/8 in, 7/16 in, 1/2 in, 9/16 in, 5/8 in and an Allen wrench. - MATERIAL AND QUALITY: Made from durable carbon steel with a set screw. Stays stable when tightened and is designed not to damage the bits. - DESIGN AND FUNCTION: The locking screw keeps the collar securely in place where you set it, providing precise control of hole depth. - KEY BENEFITS: Quick depth setup, repeatable hole depths, reduced risk of over drilling, suitable for production runs and repeated drilling. - USE SCENARIOS: - Woodworking: drill dowel holes to consistent depth across parts. - Cabinetry and furniture assembly: ensure uniform pocket hole depths. - Metal fabrication: maintain consistent hole depths during repeated drilling. - COMPATIBILITY: Uses a set screw to lock the collar on the bit, enabling secure placement anywhere along compatible drill bits.