Features:1. Adjustable drill guide, easy to meet yourdrill requirements.2. Equpped with a dedicated clamp board, you do not need to use an locking pliers to clamp the wood board when puching holes in the side.3. Come with 6/8/10mm drill bushings and twist drill to accurately drill corresponding size of holes.4. Forged by premium tool steel, the drill bushings are of good strength and long durability.5. Strict and fine workmanship ensures high precision and long service life.Specification:Drill Guide Material: 6061 Aluminum AlloyDrill Bushing Material: Nitride Tool SteelDrill Thickness: 10-180mmSide Hole Diameter: 15mmDirect Hole Diameter: 6/8/10mmSlide Stroke: 5-90mmSide Hole Stroke: 23-43mmSize: Shown as pictureWeight: Approx. 1550g/54.7ozPackage list:1 * Extension Locator9 * Drill Bushings (3pcs 6mm, 3pcs 8mm, 3pcs10mm)2 * Knurled Bolts4 * Limit Ring (1pc 6mm, 1pc 8mm, 2pcs 10mm)2 * Star Screws1 * 15mm Tapper3 * Drill Bits 6/8/10mm1 * Hook Spanner1 * Clamp Board1 * Slider Set1 * Main Board2 * Washers 0.5/1mm1 * Hex Wrench1 * User ManualNote: Since the slider slides 2mm each time, it canonly be aligned with the center of the plate of 10, 14, 18, 22mm, etc. If thethickness of your plate is not these thicknesses, it can't be aligned with thecenter to punch hole without adding washer.