These 6.35mm(1/4") & 6mm shank cutters are designed for general routing, grooving, rebating, dados, mortising and edge trimming. Shank: 1/4"(6.35mm) 6mm. Shank Material: High Speed Steel. 6mm-100mm Diamond Hole Saw Cutter Drill Bit Set for Tile Glass Ceramic Marble.
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