VIFERR Diamond Drill Bit 1mm Glass Jewellery Drill Bits Diamond Coated 20Pcs for Jewelry Agate Sea Glass

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  • Premium Diamond-Coated Construction Diamond drill bit set ismade with high-grade diamond powder for exceptional hardness and precision, enabling clean holes through tough materials like jade, agate, and glass without cracking or chipping delicate surfaces
  • Versatile Material Compatibility Stone carving set is perfect for jewelers and craftsmen working with diverse materials including ceramics, amber, semiconductors, and precious stones, providing reliable performance across multiple applications
  • Professional-Grade Precision Diamond drill bit features ultra-fine 1mm drilling head and 0.6mm shank for delicate work, with 36mm length providing optimal control during detailed lapidary or jewelry-making projects
  • Self-Sharpening Capability Diamond twist drill bit maintains cutting efficiency longer than standard bits - simply trim the tip with pliers or sharpen with a whetstone to restore peak performance after extended use

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