Heavy-Duty Professional Tool: You can use the cabinet door mounting jig for support, positioning, and leveling when installing cabinet doors. Height-Adjustable Support Arm: The cabinet door mounting clamp jig also allows you to position cabinet doors precisely. Adjust the height of the support arm to 2-1/2 inches. For Left and Right Doors: Whether you use it for left or right doors, the cabinet door installation jig simplifies installation. With a sturdy support arm and aluminum clamp, you can hold the door with one hand and leave the other free to attach the hinges to the cabinet. Applicable Type: This cabinet door installation jig is suitable for both framed and frameless cabinet doors and is suitable for cabinet boards with a thickness of 5.08 cm (2 inches). Aluminum Alloy: Made of excellent aluminum alloy, this cabinet door mounting clamp jig features sturdy arms and integrated heavy-duty clamps.