With the new Cordless Precision Engraver (Model #505) [Patent Pending] from General Tools & Instruments users can protect all types of valuables with identifying markings. and even perform delicate personalization of items. This precision specialty tool enables engraving anywhere by anyone–from professional technicians and mechanics to homeowners and DIYers. Designed in-house by General's engineering team. the engraver uses a standard 3/32 in. diamond- tipped engraving bit (included). Its powerful 20.000 RPM motor is powered by just two AAA batteries and enables engraving in glass. metal. ceramic and plastic. An aluminum body offers superior durability while the one-of-a-kind tri-lobe ergonomic grip provides the ultimate in comfort and ease-of-use. Make your everyday life more convenient and simpler with our range of Home Tools that offer the reliability and durability you desire. These tools are designed to cater repair and maintenance tasks in any home. FeaturesDiamond Tip BitPrecision cordless engraving anywhere. Use on metal. plastic. ceramic or glass surfacesProtects all types of valuablesUses standard 3/32" engraving bitAluminum body20.000 RPM motor2 AAA batteries (included)Package Specifications = H: 11.12'' W: 5.12'' D: 1'' Cube: 0.0329 Weight: 3.8oz Weight: 0.23lbs