Comes with a step drill bit and some accessories, to use.High scale, easy to adjusting drilling height and hole depth.Adjustable dowel hole drill guide for different thickness, easy to producing joints.Within tighten clamp, convenient to fixing drill guide on the wood.Good abrasion resistance. High strength and hardness. Easy to use.How to Drill:1. Adjust the drilling height according to the thickness of the board.2. Tighten the clamp to fix the drill guide on the wooden board.3. Place drill bit into hole.4. Turn on the electric drill and set it to a certain speed of 500-1500rpm.5. drilling half of drill bit into the wood, drill slowly to accuracy.Other Note:1. energizing the drill, do not let the drill bit touch the wood.2. Due to the lighting effect and , the product has chromatic aberration, please understand.3. Due to manual measurement, there are errors in product dimensions.Woodworking Drill LocatorType:Carpentry ToolsFeatures: Innovative, Practical, Efficient, color:RedMaterial:MetalPackage Contents:1 x Drilling LocatorOnly the above package content, other are not included.Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.