Diamond Finger Bits

Diamond finger bits are specialized tools designed for high-speed cutting, drilling, and shaping of stone materials such as granite, marble, quartz, and other stones. They are with small size and widely used on CNC bridge saws and routers for sink cutouts, edge profiling, slotting, and other precision fabrication tasks.

We provide two different types of finger bits: segmented type for granite and electroplated type for marble. The main connection is G 1/2″. Common diameters are 20mm, 22mm, and 25mm, with optional processing lengths of 30mm, 40mm, and 50mm.