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Roughing Stone · Aluminum Oxide · Medium-Hard Structure with Moderate Breakdown

Our Ruby aluminum oxide roughing stone is extremely fast cutting and performs well on all tool steels. It provides sharp cutting action for fast stock removal. The consistent breakdown allows the stone to be used dry without loading. It can be used either by hand (check out our line of Hand Holders!) or with reciprocating profilers like our U-Lap and Turbo-Lap Air Profilers. If you prefer to use the Ruby with a lubricant, try our Premium Stoning Oil or BORI-LUBE 10!

Available in 60-220 grit and a variety of sizes.

From soft to hard, BORIDE Roughing Stones enable rapid, aggressive stock removal. Following is our line of roughing stones in order of hardness, softest to hardest: RO-GS, Roughout, RO-MED, Ruby, RO-HARD.  

These helpful links will assist you in choosing the perfect finishing stone for your application:

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