Contents:
power : AAA size battery X 2 (Not included battery )
High speed : 20,000 R.P.M.+10%
body length : 15 cm
2pc 1.0mm Engraver Diamond Tip.
Easy replacement: fit for 2.34mm bit Pull out the holder directly.
Hold the engraver as a pen and apply minimum amount of
pressure.
Engrave any surface: Metal, glass, wood, plastic…