Scorpion series utilizes a thicker aluminum plate (5 mm vs 3 mm)

Shapton Pro stones always have a color pattern

Tsushima Whetstones are used for fine sharpening on KME or Hapstone knife sharpeners

Kazak [BLACK]

(Sirius Stone Set)

boride t2 series full stone set for edge pro bestseller Scorpion series utilizes a thickerBoride sharpening stones are used for sharpening knives on Edge Pro sharpeners. Boride offers a wide range of stones with different performance values and different rates of wear. Boride T2 series stones are made of aluminum oxide. All Boride stones are 6 mm thick and are mounted on high quality aluminum blanks. Stones that are 6 mm thick offer a longer life cycle than stock Edge Pro stones that are 3 mm thick and are becoming a community standard.