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Rubi Drygres Premium Drill Bits Rubi's premium line of drill bits is for use with a grinder (dry or wet use), and it provides a cleaner result with better longevity. Features Rubi's DRYGRES diamond drill bits are ideal for drilling ceramic tiles of all kinds, particularly porcelain stoneware, as well as other covering materials like granite and marble High-quality materials and vacuum brazed diamond grits provide an extended lifespan and increased durability In the smallest diameters (1/4" to 3/8"), integrated wax has been utilized to aid with cooling and lubricating during drilling "Easy-Start" Without slipping Available Sizes 1/4" 3/8" 3/4" 1-1/8" 1-3/8" 1-5/8" 2"
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🇺🇸 Ship from USA · On Agora since 2026
$22.49