Multi-functional Core Drill Bit
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1.Size: 6mm, 8mm, 10mm, 12mm
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2.Material: Carbon Steel with Carbide Tip
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3.Type: triangular shank
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4.Surface Treatment: as picture or per your request
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5.Application: Drilling Holes In Metal, Masonry Drilling, Glass, Tiles, Ceramics, Mirror, Hard Plastic,etc