The supreme diamond core bit is one of the best core bits on the market. It is designed for extreme performance under most circumstances, dry or wet. It works great on granite, hard marble, other hard natural stone and engineered stone. It can be used with an angle grinder or drill press. Using wet will significantly prolong the life span.

• Laser welded for stronger bonding
• Turbo rim segments for extreme speed
• Super aggressive matrix
• Long lasting life
• Made in Korea