Black series metal bonded tooling is soft bond and usually averages in the 8,000 to 10,000 square foot range. They’re available in 6,16, 30/40, 60/80 and 150 grits. This is a traditional trapezoid type tool. With price and production being key points to success, these tools will definitely help you out on your upcoming prep or polish job.
The 16 grit is more of a removal tool for some glues and epoxy coating removal. This tool is very aggressive, with a medium-low grit double bar used to remove shaver lines, mastics, or the first cut on extremely hard concrete.