Robinair18403 Fin Straightener, White

A little tough to get the hang of, but the right technique will come with practice. A little tough to always ensure the teeth are aligned with the fins properly. Did really make a difference for my window AC though went from 30% mashed flat to 98% open fins.

Hard to use takes long time and patience

Handled all but the most badly damaged fins with relative ease. On the worst fins, I straightened them best I could with a pocket screwdriver and aligned them using the Robinair 18403 Fin Straightener. TIme consuming but well worth the effort. Took about a day of work to repair the carelessness of the original installers but the repair is awesome and the efficiency of my heat pump/AC unit has improved noticeably.The tool still looks like new. No visible wear on the straightening teeth which was a nice surprise because of the negative reviews I had read before buying. Glad I bought the tool.

buen articulo, buena herramienta de calidad los acabados

This tool works very well; however, the tool is fragile. The polymer comb will not hold up to abuse. What I mean is if you sink the comb in the fins and just gorilla it up the fins, you will ruin the comb. There will be an appropriate fin spaced comb for you to use so just test until you find the right one, don't just try and make one work because its close. Just pull up slowly and "firmly." Use discretion. If you hit a particular bad spot you must work the tool, slight jiggle side to side with up pressure and it may take several several purposeful strokes to slowly straighten a really bad spot out. As this tool is fragile it does tend to wear out/damage quickly even if you are careful.