Description Made of aluminum alloy, anodized surface treatment, nitrided hard tool steel drill sleeve.High hardness, wear and durability. Drilling dowel jig with clear scale, laser engraving scale, engraving process the scale value is half the thickness of the wood plate. The star screw of drilling locator can hold the wood plate tightly one clamping methods, drilling is precise and convenient. Adjustable metal bushings, metal bushings Precise alignment when drilling hole, easy to adjust hole height and hole depth. Can be disassembled into two pieces.
