uxcell Diamond Grinding Mounted Point, 15mm 600 Fine Grits Spherical Concave Head Bead Coarse Grinding Bit for Jade Amber Stone Beeswax Glass auspowers_batchfour Whether you need to prototype

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uxcell Diamond Grinding Mounted Point, 15mm 600 Fine Grits Spherical Concave Head Bead Coarse Grinding Bit for Jade Amber Stone Beeswax Glass auspowers_batchfour Whether you need to prototypeuxcell Diamond Grinding Mounted Point, 15mm 600 Fine Grits Spherical Concave Head Bead Coarse Grinding Bit for Jade Amber Stone Beeswax Glass Product Features Mounted Point: Head diameter: 15mm 0. 59" (spherical diameter is about 1mm 1. 5mm smaller than the head diameter.); shank diameter: 6mm 0. 24"; grits: 600 (fine grit); head shape: spherical, concave (the concave arc is smaller than a semicircle.). Wide Applications: Suitable for polishing jade,