
Diamond Sintered Router Bit for Stone Engraving. Superior Wear Resistance: Latest sintering formula provides better wear resistance on granite compared to original tools. Precision Engraving Capability: Sharper and higher efficiency with no deformation for precise engraving on hard and fragile materials. Versatile Material Application: Suitable for glass, ceramics, silicon slice, crystal, granite, marble, and malmstone. Customizable Tool Size: Tool size can be customized to meet specific engraving requirements. Professional Technical Support: Free suggestions and professional tool collocation programs for first-time users. Laboratory Testing Service: Professional lab available for testing and finding optimal parameters for your stones. Fast Delivery Time: Standard delivery time is 3 days for most orders. Global Market Acceptance: Quality widely accepted in domestic and overseas markets since 2011.