Electric Engraver Product Type Engraver Kit Compatible Workpiece Material Ceramic Glass Leather Metal Plastic Wood Power Source Corded Collet Size 1/16 in 1/8 in Maximum Strokes per Minute 2 200 stroke/min Speed Settings Variable Tool Length 5 1/8 in Tool Weight 0.5 lb Includes (13) Engraving Accessories Polishing Compound Wrench Cord Length 6.5 ft Current 0.5 A Features Narrow Profile and Soft Grip Speed Control Lightweight Maximum Motor Speed 22 000 RPM