VERSATILE: This 3V pen style cordless mini engraver is ideal for model makers, crafters and engravers. EASY TO USE: With a quick keyless accessory change between 2.3mm-2.4mm, it has a maximum 13, 000 RPM no-load speed. INCLUDES: 1 mini engraver, 2 stencils, 6 grinding burrs, 2 AAA batteries.