Versatile Use --- This tool kit is suitable for hinge punching positioning, vertical punching, panel dowel punching, side panle line drawing. Accurate and Reliable --- Repeatable results with measuring scales; reliable drilling with bit guide. The hole jig is a great tool set for both furniture factory and woodworking enthusiasts. Well Accessoried --- 5-10mm drill bushings and drill guide body are fixed by screws, more stable and with strong clamping force when drilling. 5 bushings easy to exchange for different drill needs. Superior Quality --- Drill guide body use the newest engineering plastics,wear-resistant and longevity; drill bushings made from abrasive cast steel with high hardness and corrosion resistance. Drilling Helper --- The Concealed Hinge Jig allows you to drill cup holes for concealed cabinet door hinges.