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 and shapes all types of tools and steel qualities including HSS. A distinction should be made between the shaping and sharpening of a tool. When shaping, you remove steel to achieve the shape and edge angle you want. When sharpening, you just touch up an existing shape to renew the sharpness.