The 9507 tooling series is a half-bar metal bond diamond designed for use with National's Helix and 8274-4 planetary concrete grinders.  This half-bar diamond is designed for the removal of thin epoxy, paint, adhesives, and sealers. 

9507-6MB (6-Grit, medium bond)

9507-16SB (16-Grit, soft bond)

9507-16MB (16-Grit, medium bond)

9507-16HB (16-Grit, hard bond)

9507-30SB (30-Grit, soft bond)

9507-30MB (30-Grit, medium bond)

9507-30HB (30-Grit, hard bond)

9507-50SB (50-Grit, soft bond)

9507-50MB (50-Grit, medium bond)

9507-50HB (50-Grit, hard bond)

On the Helix concrete grinder, attach this tooling segment directly to the outside ring of the grinding head.  Continue setting up your machine by setting it to low speed and removing the weight for your first pass. 

The 8274-4 planetary concrete grinder uses this tooling attached to the satellites. Lift the side weights off the head of the grinder, and run a first pass to see how effectively these are cutting.  If needed, drop 1 or 2 weights over the head on either side of the machine.