Tormek Blackstone Silicon for T-7 and S2000 Models has been developed for shaping and sharpening HSS and exotic alloyed steels. It can also touch up tungsten carbide. It does not offer faster steel removal on ordinary carbon steel. The combination of abrasive hardness, shape and grain size is optimized to work efficiently at the Tormek system’s low RPM. Its faster material removal is an advantage especially when shaping tools with a large bevel surface, where the grinding pressure is limited, for example, planer blades and woodturning skews.

The grit size 220 is the same as the Tormek Original Grindstone and can be altered to work like a 1000 grit stone with the Stone Grader SP-650. Thanks to its sharp and relatively small grains, the Blackstone removes hard steel efficiently even at low grinding pressure. The Blackstone Silicon also offers exceptional wear resistance. It can even touch up tungsten carbide, where the tool already has an established shape.

Please note: For normal carbon steel chisels, knives, scissors, plane irons, etc. we recommend the SG-250 Original Grindstone.

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. It is delivered with the T-7 model (SG-250) and with the T-3 model (SG-200).

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.