Features: new and high quality Aluminum materials are fine in workmanship. Removable and replaceable drill sleeve. One-pieces molding is solid and durably Clamping firmly and positioning quickly, and the thickness of the clamped plate is 18-52mm. Precise drilling, scale inside and outside, clear and adjust; The opening is kept in the center of the plate. Its advanced features and durably design ensure exceptional results. Experience the joy of creating beautiful woodwork Specifications: Material: Aluminum Alloy+Brass+Stainless Steel Type:A/B/C/D Punching size: 6/8/10/12/14/15mm Scope of application: 18-52mm plate Size:Approx.40x68mm/1.57x2.67inch Package Includes: 1 Set Hole Positioning Tool note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.