Core bit MK-290 1-1/4 in diameter 10 mm shank for ceramic and marbleProduct Code:
Designed to cut clean, smooth holes through all ceramic tile and marble. Replaceable pilot drill prevents bit from wandering when starting hole. Can be used wet or dry. Diamond rim is turbo-style on sizes up to 2-1/4" and continuous on bits larger than 2-1/4". 10mm shank.