This polisher is great; I use it to polish jewelry and small metal parts. The air control allows me to adjust the pace for delicate works, and the 75mm buff size is ideal for precision work. It doesn't overheat and leaves a mirror-like gloss.

I work as a motorcycle detailer, so I'm always navigating tight spaces and intricate curves. What a blessing this Shinano polisher is. Because of its compact size, I can reach areas on fairings and tanks that are inaccessible to larger polishers. For precise application of glazes and waxes, the single action is ideal.

The SI-2221 is constructed to a high quality, just like all Shinano tools. The air motor operates easily and reliably, and it feels sturdy and well-made. Despite my frequent use, it still functions flawlessly. It is a very good tool.

This polisher's lightweight design is a major benefit. I don't get hand or arm tiredness from working for long stretches of time. For detailers who polish for hours, this is extremely crucial. The weight and dimensions are perfectly balanced.

This polisher is great for restoring headlights, in my experience. The variable speed control enables me choose the ideal RPMs for every step of the process, and the small buff size lets me concentrate on particular regions. My headlights now operate considerably more quickly and easily thanks to it.

I work on vintage vehicles with intricate paint jobs, and the SI-2221 provides me with the exact control I require. I can meticulously polish without worrying about damage because of the single-action rotation's smoothness and predictability. For complex body panels, the small buff size is ideal.

This 75mm polisher is perfect for the little paint corrections and spot fixes I frequently perform. It's small enough to fit around trim and into confined spaces like door jambs, but strong enough to tackle little dings and scratches. It has greatly increased the efficiency of my detailed work.

I bought this polisher for motorcycle detailing, and it works like a charm. The 75mm size is perfect for curved and intricate surfaces. The air consumption is efficient, and it runs quietly compared to other polishers. I have been using it for months with no issues. Definitely a high-quality tool for professionals!

This Shinano air polisher is well-balanced and smooth, making polishing jobs much easier. The speed is perfect for detailed work, and it doesn’t leave swirl marks. It’s also lightweight, which makes it comfortable to use for long periods. The only issue is that finding replacement buff pads locally can be tricky, but otherwise, it's a great tool.

I have used many polishers, but the Shinano SI-2221 offers exceptional control and precision. It’s perfect for restoring headlights, polishing alloy wheels, and spot repairs. The build quality is excellent, and it doesn’t heat up even after prolonged use. This is a must-have for professionals!