Granite Core Bits by Dia Plus® are manufactured in Korea and is made with the highest quality diamonds in the industry. This Diamond Sided Core Bit is the fastest and cleanest bit we’ve tested to date. With diamonds located on outside of the barrel, friction is greatly reduced, resulting in lower heat and less drag. The reduced heat allows the bit to preform at higher RPMS without decreasing the life of the bit.
Diameters: 1″, 1 1/4″, 1 3/8″, 1 1/2″, 1 3/4″, 2″, 2 1/4″, 2 1/2″, 3″
Uses: Wet and Dry
Machine: Angle grinder, Drill