DT DIATOOL Diamond Chamfer Bits 50mm Milling for Enlarging Holes in Tile Porcelain Marble Ceramic Granite

【Precise Size & Professional Spec】 Standard M14 Threaded diamond cone bit tiling with 50mm diameter and #80/100 fine diamond grit. Perfect 60-degree bevel angle ensures smooth chamfering, edge shaping, and professional finishing for heavy-duty angle grinders. (Recommended RPM: 6,000; Max RPM: 11,000). 【Multi-Function & Money Saving Design】 A highly versatile diamond beveling chamfer bit designed for reaming, smoothing, widening, and polishing existing holes. Save your tool cost: Use just one standard core drill bit plus this tile cone cutter to customize and create multiple hole sizes easily. 【Prevents Fragile Tile Cracking】 Vacuum brazed diamond technology delivers a significantly faster cut rate and smoother beveling. Effectively stress-relieves rough holes in fragile porcelain tile, marble, and ceramic, drastically reducing the risk of cracking after tightened plumbing or LED light installations. 【Premium Diamond & Long Service Life】 High-quality, industrial-grade diamond fully covers the working surface. Provides maximum grinding efficiency and a stable, extended lifespan. Supports both dry and wet use; wet grinding with water cooling is highly recommended for ultra-hard granite or massive tasks. 【Crucial Notice: NOT For Drilling】 Please note that this tile cutting cone is NOT a core drill bit for drilling new holes. It does not make holes from scratch; it is engineered strictly to shape, clean, reinforce, and enlarge existing holes when the borders are chipped or need a clean edge.