Forstner drill perfect for producing clean cut flat bottom holes, pocket holes and through holes. Forstner tip hinge boring bit set is made of alloy with workmanship and durability. 2 Designed to make professional flat bottom holes, pocket holes, and clean through holes. The saw tooth cutting edges are great for drilling 90-degree holes. Suitable for hinge installation,wood processing repair and model making. Suitable for precise drilling and high finish into . Can open any hole you need on all kinds of wood, wood , plastics, plywood and other materials. Material: steel Color: Silver Drilling Material: MDF/Wooden Material Diameter: 15mm Size: As shown Package Contents: 1* 15mm Hole opener Only the above package content, other are not included. Note: Light 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.