【POSITIONABLE DRILL BIT】: High hardness and heat resistance, the high temperature generated when drilling does not deform it, it is also durable, it can be used for a very long time.Its head adopts arc design, precise and clean flat bottom hole with fast waste removal and ensuring you work efficiently.(Please do not drill into metal)【CEMENTED CARBIDE】: Constructed of titanium alloy steel for long-lasting durability.Forstner Steel High Speed Steel drills overlapping, oblique and punched holes in all types of wood, makes it easy to drill hinge hole, cylinder hole, thread hole of computer desk and furniture fastenerdomestic.【DEPTH STOP DESIGN】: A depth stop can be fixed on the shank, which prevents you from drilling too deep, depth limited from 15mm to 45mm.You can also remove the stop for unlimited depth.Guided by the circular rim, it pierces all arcs in all directions.Curved design, the head effectively removes debris and works efficiently.【X-WING DESIGN】: X-wing head provides visibility and stability during operation.The central spur of each bit ensures precise drilling and prevents walking and wobbling during operation.Create perfectly round, precise holes with the center spur design.【WIDELY USED】: Suitable for drill press, hole puncher, tabletop drill, vertical drill, handheld electric drill, drill press and movable band drill.Can be used for punching wood products, mounted spherical door pusher tips, drawers, plastic products, wood, plywood, etc.