2012-08-12 2pc diamond hole saw - core drill - set - 1/2 Buy Cheap 2pc DIAMOND HOLE SAW - CORE DRILL - Set - 1/2" + 1" GET SPECIAL PRICES NOW!(Limit Time Offer) >ReadMore details Product Feature - Hole sizes - 1/2" + 1" 1/4" shank Nickle plated - Diamond coating Superior performance - Great for holes in marble, Slate, Glass, Tile etc. More Feature Details