The moisture meter can quickly measure the moisture content of the grain. 1. Set Contents: The centering stud tool kit includes 1 retainer and 7 spare drill sleeves, with 1 of the bushings already installed on the retainer. 2. Easy to use: Adjust the position of the self-centering feet to fix the studs to fit different board thicknesses and quickly and easily punch holes on the sides of the boards while maintaining good perpendicularity and greater punching accuracy. 3. 8 sizes of drill sleeves: The punching tool set includes 8 types of drill sleeves of different sizes, 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, for easy drilling of holes of different sizes Meet different drilling needs. 4. Aluminum alloy: The self-centering stud instrument is made of aluminum alloy subjected to good oxidizing treatment on the surface, characterized by high hardness, wear resistance, rust resistance, strength, durability and excellent performance parameters. 5. Accurate Positioning: The self-centering stud template is widely used for accurate positioning when cutting holes in the sides of wood panels. Quick positioning of holes allows for seamless connection of panels. Please allow slight dimension error due to manual measurement. Item Type: Self-Centering Pin Tool Material: Aluminum Alloy List of packages: 1 x stud punch (installed 1 sleeve) 7 x bushing