Granite and Quartz cores drills with 70mm working length and M14 fitting
from £32.80
Size:

Vacuum brazed Diamond core bits with diamond to side wall and M14 fitting
from £24.00
Diameter:
Wet Use Diamond drill bit for Granite and Marble (Round Shank)
from £21.00
Size:

Double sided vacuum brazed core bit with hex shaft
£14.00
Size:
Vacuum brazed M14 core with 10mm diamond cap surrounding
from £36.00
Diameter:
Vacuum brazed M14 core with 60 degree cone
from £34.00