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JINGLING Diamond Coated Hole Saw Drill Solid Bits Cylindrical Head Grinding Needle Lapidary Carving Tools for Jewelry Gems Glass
Description:
Diamond coated Hole Saw Drill Solid Bits
Tip Shape: Cylindrical Head Tip
Head Diameter : 0.5 mm
Total length : 42mm ( 1-21/32"), can drill 4 mm depth
Shank diameter: 2.35mm ( 3/32")
Material: Metal, Diamond.
The speed of 5000-50000 r/min
Can be installed on the electronic grinder, hanging mill and hand electric drill (not included here).
Suitable for use in drill hole on Jewelry, Gems, glass, marble, tile or granite. Used for drill hole, sculpturing, precision grinding and internal grinding carbide in ceramic, glass, precious stone, alloy and many other abrasive materials.
Use with water as a lubricant
Note: carving must use cold water to cool the workpiece and the grinding head polishing, moment also canÂ¡Â¯t do without water
Never use drills while machine is in hammer action.

Diamond grinding head is ideal tools for drilling stone, glass apparatus, tile, jade carvings
Head Diameter:0.5mm; The positive tolerance of the head diameter of the grinding bit is 0.1-0.2mm
Shank Diameter: 2.35mm(3/32"); Suitable for electric nail drill, carving machine with a 3/32" collet
Used for sculpturing, dressing, grinding ceramic, glass, precious stone, alloy carbide
Product Name: Lapidary Diamond Drill Bits, Diamond Drill Bits for Stone, Gemstone Drill Bits

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JINGLING Diamond Hole Saws 0.5mm Cylindrical Grinding Bits Jewelry Tools for Stone Pack of 30Pcs

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