Purpose and benefit: Vertical orientation prevents bending or breakage, ensuring consistent, long-lasting performance when creating countersunk recesses for screw heads. Easy adjustment: Adjustable counterbore length with a fastening screw and included hex key lets you set depth quickly and securely for different screw sizes and material thicknesses. Broad compatibility: Designed for use with drill presses, bench drills, handheld drills and portable drills, making it suitable for workshop and job-site equipment. Efficient, clean results: Smooth counterbore design reduces chatter and effort, speeds the drilling process and produces neatly recessed (embedded) screw caps for flush, professional finishes. Key attributes at a glance: Function: creates clean countersunk recesses for screw heads Adjustment: variable counterbore length with locking screw and hex key Orientation: vertical design to resist bending and breakage Performance: smooth counterbore for faster, cleaner work Compatibility: drill presses, benchtop drills, handheld and portable drills Typical use scenarios: Cabinetry and furniture assembly: produce consistent, flush screw recesses for a neat finish on wood panels and frames. Metal or precision workshop work on a drill press: countersink bolts and screws with minimal runout and reduced tool stress. On-site repairs and installations with a handheld drill: quickly create recessed screw heads for trim, fixtures or repairs without specialized equipment. Includes fastening screw and hex key for straightforward setup and secure locking of the counterbore length.