Features: Engineered with diamantine coated M14 threaded teeth, this hole cutter delivers rapid, precise cut through tiles, marble up to 50mm diameter, minimizing friction for professional results. With D90 diamantine grit ensures vibrations less operations and 50% longer life than standard drill bits, maintaining sharpness across ceramic, glass, and engineered stone surfaces. Ideal for renovation contractors and DIYer enthusiasts requiring reliabled tools for bathroom remodels, kitchen backsplash installations, and stone countertop projects. Perfect for wet/dry drilling in challenging environments, this opener exceling in tiles wall penetrations, glass panel modifications, processing with chip less edges. Its M14 thread enables tool less attachment to most rotary tools, while the 45# steel body withstands heavy duty use across multiple materials without deformation. Specifications: Product Type: Brazing Hole Opener Applicable diameter: 6mm-50mm materials: diamantine coating Specification interfaces: M14 thread Applicable scenarios: home decoration | professional construction | artistic creation, used for cutting ceramic tiles, marble, rock slabs, ceramics, glass and diamantine. Package Includes: 1pcs diamantine Hole Cutter note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind befores you order. 2.Due to the differences between different monitors, the picture may not reflect the actual color. Thanks for your understandings.