Diamach 1/2 Shank Vacuum Brazed Diamond Router 5mm Radius 5ROUTHB12
The Diamach 1/2 Shank Vacuum Brazed Diamond Router with a 5mm Radius (Model: 5ROUTHB12) is a professional-tier edge-profiling tool engineered to carve smooth roundover details onto hard stone and porcelain surfaces. Equipped with a universal 12.7mm (1/2") cylindrical shank, this router bit is uniquely optimized to run inside heavy-duty woodworking routers or automated CNC spindles, providing stonemasons and tilers with an efficient, portable solution for finishing stone edges.
Key Specifications & Operating Parameters
• Coarse Diamond Grit: Utilises an aggressive 30/40 grit vacuum-brazed diamond layer designed for high-speed stock removal, preventing the bit from glazing or binding against stubborn crystalline structures.
• Tracer Bearing System: Features an integrated steel guide bearing at the tip. This allows the tool to ride smoothly along the straight or curved template edge of the slab, ensuring an exactly uniform 5mm demi-bullnose profile without gouging the stone.
• Material Versatility: Highly effective at shaping engineered quartz, natural granite, marble, limestone, and hard ceramic or porcelain slabs.
• Speed Management: While vacuum-brazed tooling is highly heat-resistant and can handle dry operation up to 10,000 RPM, using variable speed settings (starting around half-speed) and applying a light water mist or brief air-cooling cycles significantly extends tool life.


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