Thumb Score: +13 Grade A Tools are restored or rebuilt to factory specifications then fully tested and inspected to make sure they operate properly and safely. Grade A tools have a cosmetic condition of very good to excellent, having no more than light scratches or other minor blemishes. The D13VF 1/2" 0-850 RPM Drill drills into various types of metal, wood, plastic resin, stainless steel and similar materials.