I had been looking at this tool for about a year. After numerous reviews, I finally purchased it. The tool seemed to be of good quality so I immediately put it to use. Of 10 clogged fittings that I tried it on, it only cleared 3. The seal in the tool failed, allowing oil to spray out around the union. I am a professional mechanic with over 40 years of experience in the maintenance field. I have used numerous tools over that time period. I followed the instructions with the tool precisely and it only delivered mediocre performance. I also realize that this tool will not unclog rusty neglected fittings but the fittings that I used it on are on operational, in use equipment. I returned the tool and was refunded the purchase price.
This grease rejuvenator works just like the instructions says. It is easy to use. I wouldn't want to pay much more than abut $60.00 for it. Overall, I am happy with this product.