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3/8" Diamond Core Drill Bits, 3 Pack for Drilling Cutting Holes in Glass and Tile Fits Your Drill or Drill Press

You’ll make lighted holiday decorations. Easy drilling instructions mean that you can make wine bottle lights and lighted “Christmas presents” from glass block. As a bonus, you can use these bits to make bird feeders too.

Diamond core bits drill holes in wine bottles or glass block in just 1-2 minutes. You won’t break any bottles or glass block.

These diamond core bits (diamond hole saws) are the best value that you’ll find on the web or anywhere else. They have a 1" depth of cut, 5/16" arbor or shank. Use your regular handheld drill or drill press. Easily drill 20-30 holes with each bit.