In article .com,
says...

Rented a gas powered concrete saw today and didn't make a whole lot of
progress. In several hours I made a notch about 1.5" deep and eight
feet long. Used a standard 14 inch masonry blade. The guy said a
diamond blade could be rented for an extra $35. Can anyone tell me
whether a diamond blade would cut appreciably faster? Or does a diamond
blade just have a much longer lifespan?



Dave, a cut that size would take about 5 minutes with our diamond blade saw.

Dennis