Milwaukee Electric or Electrical Tool 49-56-0517 Diamond Plus Hole Saw, 1-in.

1", Diamond Hole Saw, Diamond Plus For Greater Durability and Toughness, Delivers Up To 10 X Longer Life, Higher Grade Diamonds and Improved Braze Provide Best In Class Performance, Large Slug Ejection Slot Offers Easy Plug Removal, Versatile, Ideal For Cutting Anchoring and Clearance Holes In All Tile, Stone and Glass, No Arbor Needed.