Precision hole-positioning ruler for accurate, repeatable drilling. - Increased precision: T-shaped ruler with flat edges and clear graduations on both the main ruler and the slider for precise marking and measuring of hole spacing. - Adjustable design: Sliding ruler locks into place for repeatable hole positions and quick pattern changes. - Solid material: CNC-machined from aluminum alloy with an anodized cover for durability; engraved scale remains legible. - Accurate measurement: Provides true horizontal and vertical alignment; includes a calibration tool, a strong locking mechanism, and a built-in spirit level for fast checks. Length and angle adjustments are easy. - Compatibility and size: Lightweight, compact tool that fits standard drill guides and drill press setups. - Practical uses: - Align hinges and shelf holes on cabinets and furniture - Create evenly spaced dowel holes in drawers and frames - Mark precise hole patterns for framing and carpentry projects