7-Piece M14 Diamond Hole Drill Bit Set 4-150mm for Stone Granite Marble Vacuum Brazing
Premium vacuum brazed diamond tools engineered for precision drilling in stone, granite, marble, and ceramic materials. This comprehensive set features diameters ranging from 4mm to 150mm for versatile applications.
- Compatible with both dry and wet drilling applications
- Constructed with high-strength steel and premium diamond segments
- Vacuum brazing technology ensures permanent diamond grain bonding
- M14 shank compatibility with angle grinders (also fits M10 and 5/8-11" adapters)
- Diameter range: 4mm to 150mm for diverse drilling requirements
- Exceptional heat resistance and unbreakable segment design
Ideal for drilling porcelain tile, granite, marble, natural stone, ceramic, brick, and similar hard materials.
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Safety PreparationReview all usage guidelines and wear appropriate protective equipment including gloves, safety helmets, and goggles.
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Tool SetupSecurely attach the hole drill to your angle grinder. Power on the grinder and allow the bit to rotate freely to verify balance and stability.
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Initial DrillingPosition the drill bit at a 20-45 degree angle on the material surface. Begin drilling slowly until the hole formation initiates.
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Completion ProcessGradually straighten the angle grinder to vertical position. Use circular motions to complete the hole drilling.
Jiangyin Shuangbao Tools Co., Ltd., established in 2014, specializes in diamond cutting tools including saw blades, grinding wheels, hole drills, and drill locators. Our products are ISO9001 certified and exported globally to America, Europe, Southeast Asia, and other regions.
Comprehensive selection of diamond tools suitable for home decoration, construction, DIY projects, and casting industries.
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