1、Easy Drilling: The aluminum alloy main body is beautiful and generous. The two screws at the bottom buckle the wood board, take the center point and easily punch holes, draw lines and drill holes in one, saving time and effort 2、Wear Resistance and Firmness: Four kinds of metal drill sets are optional, rust proof, wear resistant and durable 3、Freely Adjustable Angle: Side arc scale, free adjustment of 0 °‑ 90 ° hole position, multi angle oblique drilling and positioning, easy to operate 4、Convenient Adjustment: A vertical scale on the edge of the handle, which can be adjusted up and down to adapt to different plate thicknesses 5、Large Nut Design: The large nut design can be adjusted by hand without the help of tools, which is efficient and practical 1 x Woodworking Hole Positioner4 x Drill Bushing  Item Type: Woodworking Hole PositionerMaterial: Carbon Steel ,Aluminum Alloy , RubberColor: Black RedDrill Sleeve Specification: 6. 8. 10.12mmControllable Angle: 0-90°Controllable Thickness: Approx. 5-30mm / 0.2- 1.2inScope of Application: Household, Woodworking, DIYSize: Approx. 98 x 86 x 86mm / 3.9 x 3.4 x 3.4in