Instruct: Classify Amazon reviews into positive or negative sentiment
Query: These bits break real fast

I started to use these bits for removing the grout on the tile above the bathtub. The bit worked fine for awhile, then it broke. I purchased several more of the 1/16" bit and even tried the larger one. They heat up and break. They are not cheap to replace. I found better bits at leakyshower.com for a fraction of the price. The dremel bits work, yet are not worth the cost. Maybe next time I'll just scape out the grout by hand.