A more durable abrasive allows these wheels to remove more material and last longer than Norton General Purpose Grinding Wheels. They are also known as Type 1 wheels and straight wheels.

The porous bond leaves more space between abrasive grains so heavy amounts of chips and coolant easily flow through.

With more flaps than standard discs, these last 30-40% longer.

The flaps have an abrasive to remove material and a lubricant that minimizes heat to reduce discoloration of the work surface.

The flaps wrap around the outer edge of these discs to sand welds at right angles.