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Good, reliable little engraver. My only complaint is that the included bits wore down quickly after heavy use on ceramic. You might want to invest in a higher-quality set of diamond tips for professional results. The pen body is solid, though.

This product requires practice! My first few attempts were messy, but once I figured out the right speed/pressure combination for different materials, the results improved dramatically. Stick with it, it's worth the learning curve.

Great tool, but it is a bit noisy, especially on the highest speed setting. I would suggest using it in a well-ventilated area or wearing headphones if you use it for long periods. Still worth every penny.

It's a fantastic pen for glass and soft metals, but don't expect it to cut deep grooves into hardened steel—it just doesn't have the torque for heavy-duty jobs. For personalizing,

The pen charges fast and holds its power, which is exactly what I needed. No slowdown in performance until the very end of the charge. Excellent engineering.