JDK4 Inch Diamond Crack Chaser Blade with 7/8"-5/8" Arbor

Used it to open a crack in patio concrete. Cuts like butter. Glad I bought.

We used this to grind out the cracks in a concrete floor that we are refinishing. It worked well, but made more dust that we expected.

Fit my grinder and did what I wanted it to do,, cleaned out the concrete so I could fill the crack with the crack filler- worked great

This is a hearty blade! Impressed with durability and heaviness. Does it’s job well.

Works great performs well holds up

Works well. Needs good dust collection.