The DrillMatePro is a professional grade, portable drill press that delivers easy, repeatable precision drilling. It serves as a portable drill press when the work is too large or awkward to take to the drill press table. The ½ in. keyed chuck accepts larger and longer drill bits, hole saws, and spade bits. The chuck also spins effortlessly with the help of its dual ball bearing design. To ensure accurate and precise results, the extruded guide head is fit with bronze bushings to the keep it on target. Convenient centering lines machined into the base makes it easy to hit the mark every time. For increased precision, drop in the included alignment disk. V-Grooves in the base help center the DrillMatePRO and allow for round stock to sit stable when drilling. Additionally, 2 included centering pins can be used either on top or beneath the base for simple twist and center drilling. With its unique independent depth stop system it's possible to drill to the exact same depth every time, while the springs prevent a heavy drill and bit from damaging the work piece. The dual spring design helps control drilling, and returns and supports the drill when not in use. They can also be removed to achieve greater drilling depth. The guide head can be locked in place when changing bits, or, when in use without the springs. The angle adjust allows for infinite angles off of vertical from 0° to 60°. Not intended for use with impact drivers or hammer drills. Material: Metal.