Features: Fast and accurate: The clamp arm is rectangular, always reliable and never dead. Just align the finishing notch on the clamp center rod with the positioning pin position mark on the board, and hold the clamp to drill the hole. High temperature resistant drill bit: The 3-hole drill bit group can withstand high temperature applications for a long time, including the most popular drill bit sizes ranging from 8mm and 15mm. High-quality durable materials: high-quality aluminum alloy (guide drill) and die steel (bushing) surface anodized treatment, high hardness and strength, good wear resistance and durability. High precision: The joinery punch positioner provides an improved version for punching holes of different sizes. It can be clamped on a 15-58mm wood board. It is fast and easy to operate. ,easy and convenient. Product use: It is often used for punching keyholes on the side of wooden doors, and for punching and splicing ordinary panel furniture. Package Includes: 1 Set Punch Locator Specifications: Material: Aluminum Alloy Size:As the Picture Shows note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.