The 80 grit Diamond Matrix Stone sits at the most aggressive end of the Edge Pro lineup - a diamond abrasive stone for situations where even the 120 grit aluminum oxide stone is not fast enough. Extreme reprofiling, severely damaged edges, full bevel geometry changes, and hardened tool steel that resists conventional abrasives all fall within its range. It also handles one application that no other stone in the system can: ceramic knives. Ceramic blades require diamond abrasive to sharpen at all - conventional aluminum oxide stones make no meaningful contact with ceramic. If you own ceramic knives and want to sharpen them on the Apex, this stone is the only option that works.
One important technique note that Edge Pro includes with this stone and that every user needs to know before picking it up: do not develop a full burr with the 80 grit Diamond Matrix. The stone removes metal so aggressively that developing a burr risks taking off too much material at the cutting edge. The correct approach is to either stop just short of a burr, or work at a slightly lower angle than your primary bevel angle to remove metal without cutting all the way to the edge. Follow with the 120 or 220 aluminum oxide stone to refine the bevel and then develop the burr at your primary angle through the normal progression. Used correctly, this stone performs tasks that nothing else in the Edge Pro system can handle.
Care Instructions: Rinse after use and store dry. Diamond abrasive stones do not dish like aluminum oxide stones but should be kept clean of swarf buildup during use. Keep dry between sessions. Handle with care - diamond matrix stones are more expensive to replace than standard aluminum oxide stones.
One important technique note that Edge Pro includes with this stone and that every user needs to know before picking it up: do not develop a full burr with the 80 grit Diamond Matrix. The stone removes metal so aggressively that developing a burr risks taking off too much material at the cutting edge. The correct approach is to either stop just short of a burr, or work at a slightly lower angle than your primary bevel angle to remove metal without cutting all the way to the edge. Follow with the 120 or 220 aluminum oxide stone to refine the bevel and then develop the burr at your primary angle through the normal progression. Used correctly, this stone performs tasks that nothing else in the Edge Pro system can handle.
- Brand: Edge Pro
- Origin: Made in USA
- Grit: 80
- Abrasive: Diamond Matrix
- Use: Extreme metal removal, ceramic knife sharpening
- Compatibility: Edge Pro Apex and Professional systems
- Mount: Sold mounted to plate
- Item Number: EDMS-80
- Important: Do not develop a burr with this stone
Care Instructions: Rinse after use and store dry. Diamond abrasive stones do not dish like aluminum oxide stones but should be kept clean of swarf buildup during use. Keep dry between sessions. Handle with care - diamond matrix stones are more expensive to replace than standard aluminum oxide stones.
