Stadea Series Super A - 1" or 25 mm Diamond Core Drill Bits Hole Saw For Granite Stone Concrete Tiles Masonry professional grade 1" or 25 mm diameter Diamond Core Bit Hole Saw with 9 mm segment height, 3.0 mm segment thickness, 4" overall Height and arbor 5/8" 11 (Made with Premium Diamond), works great on GRANITE, Marble, Concrete, Tiles, stone etc.
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