uxcell Diamond Grinding Mounted Point, 25mm 600 Fine Grits Spherical Concave Head Bead Coarse Grinding Bit for Jade Amber Stone Beeswax Glass auspowers_batchthree or you need more USB

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uxcell Diamond Grinding Mounted Point, 25mm 600 Fine Grits Spherical Concave Head Bead Coarse Grinding Bit for Jade Amber Stone Beeswax Glass auspowers_batchthree or you need more USBuxcell Diamond Grinding Mounted Point, 25mm 600 Fine Grits Spherical Concave Head Bead Coarse Grinding Bit for Jade Amber Stone Beeswax Glass Product Features Mounted Point: Head diameter: 25mm 0. 98" (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,