Tormek 8" Grindstone for T4 Made in the USA The stones themself are not

The stones themself are not made of glass

Very popular with straight razor sharpeners

Depth - 24"

the name steel has come to be applied to any sharpener in the form of a rod with a handle

While both types are often used as stand alone sharpening stones

Tormek 8" Grindstone for T4 Made in the USA The stones themself are notThe 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. This Grindstone measures 8" or 200MM in diameter. 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