The Positioner Is Made Of Aluminum Alloy, The Surface Is Anodized, It Is Durable And Light And Not Easy To Rust The Internal Self-Tightening Clamp Makes It Easy To Fix The Drill Guide On The Wood The Adjustable Metal Bushing Is Precisely Aligned During The Drilling Process, Making It Easy To Adjust The Height Of The Drill Bit And The Depth Of The Hole The Detachable Design Can Meet Different Stamping Needs High-Precision Scale, Multi-Purpose Drill Guide For Drilling Dowel Holes And Vertical Holes Attention: Due to manual measurement, please allow for a slight error. Please make sure you don't mind before bidding. The color may vary depending on the monitor, please understand. Attention: Hello, please pay attention to your shipping address when purchasing products. If your shipping information (such as name, street, house number, doorbell/email without name, etc.) is incorrect, the order will not be delivered correctly