Made in USA: quality stones at competitive prices for most general purpose applications
Aluminum oxide is the most commonly used abrasive. Best-suited for general purpose deburring and blending, it is tough, economical and fracture resistant. Commonly used on ferrous alloys, high-tensile materials and wood.
Will not be able to quickly resharpen a cutting edge, the cutting edge finally achieved will be long lasting
When more than one grit size is necessary to resharpen a cutting edge, a craftsman will often use a combination stone to lessen both the expense and the inconvenience of using two single grit stones