If you're looking for a tool to speed up the process of removing damaged or mildewed grout, then Grout Grabber is for you.

The Grout Grabber kit includes 1 adapter, 1 carbide grit blade, and 1 Allen wrench. You'll need a reciprocating saw, preferably cordless.

Using the Allen wrench, mount the grout grabber adapter and carbide grit blade on a reciprocating saw. To remove existing grout, approach the grout line at a low speed and cut into the joint until you reach the bottom of the joint.

It is especially comfortable to hold the saw in an upside-down position. At the bottom of the joint, increase saw speed and pull backwards—never use Grout Grabber at full speed.