Designed for scrimshaw and stippling methods, the Maestro also works well for fine metal engraving applications that require light to medium power. The GRS Maestro comes in three models for an even wider variety of applications. It is ergonomic and slim, nicely balanced, and very smooth in operation. Hand control is easily added with an Airtact Thumb / Finger element. Made from heat-treated stainless steel and solid brass.