PCDs for your Helix or 8274-4 grinder are sold as individual segments. Each PCD needs Qty 1 Holder and Qty 1 Shoe to make a complete piece of tooling. The Helix and 8274-4 planetary grinders each have 3 satellites, and each satellite will hold 2 pieces...

The 9510 series is a 3-segment metal bond diamond designed for use with National's small planetary grinders.  This diamond tooling is ideal for profiling concrete and is one of the steps in the prep and polishing process with the Helix or 8274-4...

The 9508 series is a full bar metal bond diamond for use with National's Helix and 8274-4 planetary concrete grinders.  This tooling is available in a soft and medium bond diamond matrix and is meant for use on MEDIUM to HARD concrete for the...

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...

The 9504-25 is a super soft single bar diamond insert designed for use with National's Helix and 8274-4 planetary concrete grinders.  This 25 Grit, concrete prep diamond is for use on extremely aggressive coating removal.  It has a supersoft...

Our 5-inch velcro polishing pads are used with our 8274-4 and Helix planetary grinders and follows your prep diamond steps.  Polishing your floor is a multi-step process, starting with a full bar diamond to break the surface tension and several...

The 9245 velcro adaptor plate is used on the Helix and 8274-4 planetary grinders.  This plate magnetically clips into place on the satellites of both 110V grinders. The velcro pads are the attachement for the polishing pads in the final step of...

501444: 3", 200-Grit resin puck 501555: 3", 400-Grit resin puck 501666: 3", 800-Grit resin puck 501777: 3", 1500-Grit resin puck 501888: 3", 3000-Grit resin puck  

The 404580 Helix Scarifier Kit includes: 3 satellites 1 dust skirt Washers All screws/washers needed for installation    

This 7-inch, 24 seg cup wheel is ideal for coating removal, grinding high spots, and cleaning along walls.  PCD wheels stay sharper longer under adverse conditions.