Description Dimensions : 16x5.5cmVoltage: 230-50hzInput Power : 13WStrokes : 6000 strokes/minMaterial : Engraving Tips --SteelCasing and Handle --Nylon & TPRVibration Value : ah=4.981m/sShip weight : 450G Uses: This product is widely used in the engraving of metal, porcelain, marble, gla, wood and other materials. Product design is reasonable, small size, easy to use. Launch, favored by the vast number of consumers, many manufacturers and distributors for their products to cook markings, eliminating the trouble in return, reducing unneceary loes, lift the advantages of looking back. Pro also can buy your favorite items, engraved with his personal signature, become exclusive private goods. Package Includes: 1X Grout Removal Tool1xFlat Precision Steel Grout Removal Tools1x Pointed Precision Steel Grout Removal Tools1X Hex Key1x Instruction Manual2 x Letter and number template How it works: The products use the frequency of the alternating current cycle characteristics, resulting in the forced vibration, driven by high hardne metal head straight bar to the top, so you can calmly lettering. How to use: Use, the right hand holding the body, like hold a pen, chisel head tilt, slight movement on the kind sculpture. Designated trails will leave marks. The variable 5 stalls, controllable different shades. According to the different materials, rationally regulate itself.With LED work light