40mm Sintered Diamond Core Drill – Durable & Efficient for Gemstone, Glass & Ceramic Cutting felt wheel polishing precise edges on metal

precise edges on metal

Designed for fine grinding and precision lapping

With its long service life

or prepping hard metals

Helix Head Bits (3/4" & 1") – Helix diamond patterns draw water to the grinding surface for cooler operation

40mm Sintered Diamond Core Drill – Durable & Efficient for Gemstone, Glass & Ceramic Cutting felt wheel polishing precise edges on metalOverview High Performance Sintered Diamond Core Drill The Sintered Diamond Core Drill is engineered for high performance drilling in ultra hard materials like stone, glass, ceramics, and metals. Its sintered diamond matrix ensures unmatched durability and precision, making it indispensable for industrial, lapidary, and artistic workflows. Engineered for professionals who demand durability, accuracy, and long lasting performance, our Sintered Diamond