WT-JGS Half Round Diamond Router Bit 30 (31 mm Cut Height) – Vacuum Brazed Full Bullnose Stone Edge Profiling Bit (1/2” Shank)

The ToolDocker WT-JGS Half Round Diamond Router Bit (No. 30) is an industrial vacuum-brazed edge profiling bit engineered for cutting full half-round (full bullnose) profiles on 30 mm (3 cm) slabs of engineered quartz, granite, marble, sintered stone, and porcelain. Designed with an expanded 35 mm top guide flange, a tight 11.8 mm center waist, and a 31 mm usable cutting height, it shapes smooth, symmetrical rounded borders on thick kitchen countertops, stair nosings, and vanity edges with minimal secondary hand polishing.

Key Features

• 30 mm Full Half-Round Bullnose Profile: Specifically calibrated to mill a continuous, convex roundover edge on standard 3 cm (30 mm) thick stone and laminated edge build-ups.

• Integrated Guide Flanges: Features a wide 35 mm upper disc that rides along the stone top to stabilize profiling and prevent over-milling.

• Vacuum-Brazed Diamond Bond: Coarse industrial diamond particles fused to high-strength tool steel deliver rapid stock removal and chip-free edge transitions.

• Rigid 1/2″ (12.7 mm) Shank: Delivers stability and resists deflection under heavy feed pressure on CNC routers and portable profiling machines.

• Mandatory Wet Operation: Designed for flood coolant or continuous water mist to prevent overheating and premature diamond wear.