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