Durable Material: This straight hole puncher is made of 6061 aluminum and is anodized, which is not easy to rust and corrosion, and is more durable. Adjustable: The eccentric wheel of this hole punch positioner is equipped with a clear and precise scale. You can adjust it according to the thickness of the board to accurately know the position and distance of the punch, which makes punching easier. Precise Positioning: This punch positioner is convenient to hold, fast and stable, and punches with precision. Accurate positioning, precise calibration, quick clamping, improve drilling efficiency. Easy to Disassemble: This woodworking hole puncher is very convenient to install and disassemble, you can disassemble or assemble it according to actual needs , and there are different models to choose from. Small and Portable: These tools are small in size and easy to carry. They are ideal tools for carpenters, construction workers, etc. They are very suitable for beginners or professionals.