Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Reamer is dull and overly large tips are hard to insert

I got a couple of these to put in my cars, because I think that plugging a tire on the car is usually a better choice than using the compact spare. I've used the kit twice, for a lawn mower and a motorcycle tire.Having plugged a lot of tires over the years with a variety of tools I will note that this particular kit is difficult to use because the tips are oversized and lack precision (they're dull). That means that a great deal of force is necessary to insert them, even when lubricating the tips with cement. That is particularly true on steel belted tires, and on high ply count tires. The plastic handle is not particularly strong and will not withstand the gorilla-like forces necessary in some cases.