Precise: this engraving tool features reciprocating action for optimal engraving control; engraves into wood, ceramics, metals, plastics, leather and much more Comfort: The design of this engraver combined with soft grip makes for comfortable and better handling Versatile: The variable stroke depth allows for different engraving effects from very fine to very deep grooves Convenient: The separate on/off switch lets you keep the preferred stroke depth setting so you can start right where you left off Guarantee: 2 years guarantee standard; get 1 year extra when registering your Dremel tool on MyDremel