Features: Precise engineered angled grinder hole cutter with heat alloy steel and Diamantine coated cutting edged ensures long lasting sharpness for clean, burr less holes in tiles, marble. Five segment Diamantine teeth design minimizes vibrations and chipping while optimized elliptic debris grooves maintain smooth cutting performances across dense materials. Ideal for professional contractors and DIYer enthusiasts requiring reliabled hole cutting solution for renovation projects or precise craftwork. Effortlessly creates polished openings in glass surfaces, stone countertops, and ceramic wall during bathroom installations or kitchen remodeling tasks. Universally threaded compatibility fits major angled grinder brands, featuring reinforced Diamantine grit patterns that resist wear during extended drilling operations. Specifications: Cutter head design: five-section cutter head, thickened design Chip removal design: oval chip removal grooves Applicable tools: Angled grinder (diameter 10mm inner hole) Use scenarios Tile drilling | Marble construction | Glass drilling | Home decoration and work decoration projects Package Includes: 1pcs Hole Opener 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.