The Tormek Original Grindstone has evolved over the years to offer the best combination of efficient steel removal, smooth surface finish and a long life. This stone efficiently cuts all types of tools and steel qualities including HSS.
The unique composition of the stone, together with the Stone Grader SP-650 gives you two different cutting actions in one stone. The Stone grader polishes the surface of the grindstone from its normal 220 grit to a finish that works like a 1000 grit stone. This is a great advantage, since you can do the fine sharpening* with the same setting of the jig as used for the initial shaping* of the tool. The Original Grindstone is the ideal choice when you want both efficient steel removal and fine finish in the same stone over a wide variety of materials, from carbon steel to high speed steel.
This is a brand new stone, 200mm diameter, returned by an Amazon customer due to severe chips as a result of poor Amazon packaging. The large chip is @12mm deep (35% of the stone life if ground to that depth with the truing tool). The stone will still be useful for grinding. Save 45%!