Features ALUMINUM ALLOY The grain finder is made of aluminum alloy with oxidized surface, which has high hardness, rust and wear resistance. MAIN PURPOSE: For locating when punching holes on the side of the panel. Quickly locate openings allows for seamless connection between panels. Punch locator kit: circular grain locator kit, including locator, drill bushings and drills, easy to install, simple and practical. Easy adjustment: adjust the position of the feet to different thicknesses of wooden boards, ensuring good verticality and higher punching accuracy. 8 Sizes Drill Bits Includes 8 different drill sizes, 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm to meet different drilling needs. Specification: Item Type:Hole Punch Locator Material: aluminium alloy. Bit Size 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm Package list: 1 x Hole Punch Locator 7 x drill bushings. 8 x drill bits Package List 1 x Punch Locator 7 x Drill Bushings 8 x Drill Bits