Includes a hexagonal key and a drill stop collar with a diameter range of 3-16 mm, enabling accurate drill placement. Key benefits - Hexagonal key provides precise operation and control during drilling. - Drill stop collar enables exact drill placement within the 3-16 mm range. - Together, they help maintain accuracy in drill positioning and improve repeatability. Why you need it - Achieve consistent hole depth and position in projects. - Reduce drift and misalignment when drilling with guides or jigs. - Support repeatable results across multiple workpieces. Use scenarios - Cabinetmaking or furniture assembly: set depth and position for dowels and hinge holes. - Metal fabrication: drill with a fixed stop to ensure uniform hole depth. - DIY woodworking: guide drilling with a stop collar in a jig for evenly spaced holes. Compatibility and performance - Designed to work with standard drills that use stop collars in the 3-16 mm size range. - Improves accuracy and control in drilling tasks.