Features: Scope of application: dowel joint drilling, hinge hinge installation. Multiple equidistant positioning holes are suitable for quick positioning. Self-centered 1/4"(6.35mm) limit drill, drilled to a consistent depth each time. The limit drill is positioned accurately, and wood chips are automatically discharged from the holes on both sides of the tip of the drill bit, so that the drill bit is not stuck. Purpose: Punch 2-1/2"(64mm), 1-15/32"(37mm) holes to the edge of the board, suitable for dowel splicing, hinge hinge installation, assembled or unassembled cabinets. Specifications: Material: Bakelite, Acrylic Size: Approx. 48x12.8x2.3cm/18.90x5.04x0.91in Package Includes: 1x Bubble Level Ruler note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.