Adjustable, tool-free steel motor cam lock makes depth adjustment and base changes quick and solid-locking * Precision machined brass bushings and case-hardened steel guide rods provide a smooth and accurate plunge stroke * Clear, LEXAN sub-base provides enhanced base durability, bit visibility, and accepts standard template guide bushings * Rubber overmolded handles and low center of gravity design provide best-in-class comfort, balance, and control * Heavy-duty, precision machined, die-cast aluminum base and motor housing for durability and low tool weight