The best new Electric Vehicles of 2025 ranked by experts. Get ratings, fuel economy, price and more. Find the best vehicle for you quickly and easily Wide Applications Suitable for polishing jade, amber, stone, beeswax, glass etc. Produce clean and accurate spherical beads in minutes with little or no chipping. Wide Applications: Suitable for polishing jade, amber, stone, beeswax, glass etc. Spherical diameter is about 1mm-1.5mm smaller than the head diameter. Head shape: spherical, concave (the concave arc is smaller than a semicircle.). Easy to Use: Can be used on bench drills, hand drills (not included here). 1pcs 4-27mm Diamond Bead Grinding Head Concave/Ball-shaped Concave Diamond Bit Uxcell Diamond Mounted Point, 34mm 100 Grits Spherical Concave Con Cave Electroplated Diamond Electroplated diamond has high hardness and good wear resistance. Easy to Use Can be used on bench drills, hand drills (not included here). Tips: Always use lubricant (water or cutting fluid) to cool the workpiece when the grinding bit is working. Specifications:Head Diameter: 10mm / 0.39 (spherical diameter is about 1mm-1.5mm smaller than the head diameter.)Shank Diameter: 6mm / 0.24Shank... The recommended speed is 2000-3000 rpm/min, for general purpose grinding in wide ranges of applications. Features: Electroplated diamond has high hardness and good wear resistance. Combined with the material to be processed, select an appropriate feed rate and cutting speed to improve the tool life and obtain better processing accuracy and performance.
