Troxell - Diamond drill bit 1/4"

Premium professional grade diamond bits. Side diamond dots help prevent bonding and cracking of the slab. Leaves the flange clean and promotes rapid coring. Standard 5/8" thread or use 21-600-A adapter for use with drills. 1-3/8" fits most plumbing fixtures. It is recommended to use water to extend the life of all diamond products. You can use a spray bottle with water. Other sizes available. Features: premium quality diamond drill bit Sintered diamonds Standard 5/8" thread Use 21-600-A drill adapter (sold separately).