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Roughing Stone · Aluminum Oxide · Hard Structure with Moderate Breakdown
RO-HARD aluminum oxide roughing stone is an excellent choice for detailing sharp corners and steps. It offers rapid and aggressive stock removal. RO-HARD can be used with or without a lubricant such as our  Premium Stoning Oil or BORI-LUBE 10. Use either by hand (check out our offering of Hand Holders!) or with reciprocating profilers like our U-Lap and Turbo-Lap Air Profilers.

Available in 150 and 220 grits 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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