Diamond Core Drill

21mm 10pcs Electroplated Diamond Core Drill Bits for Glass, Ceramic, Porcelain, Tile & Stone


$106.00

Shipping to United States: Free
  • Details
    Diamond Core Drills are made by diamond coating one end of a metal base. Use these diamond core drill bits to make holes in a variety of hard to cut materials. Unlike conventional twist drills, diamond drills work by gently grinding (or sanding) the material you are cutting. This process takes time, you have to be patient. A core drill will cut more quickly than a solid drill since it is only cutting out a small circle of material. The larger size core drill bits will also give you a useable core, but the core from the smaller drill bits are usually destroyed during the cutting process. These tools work on all types of stone,glass,tile,composites,plastics,resins,porcelain,eggs,and much more. The smaller sizes can be used in a hand drill or rotary tool (like a Dremel or Foredom), but the larger sizes should be used in a drill press.
  • Shipping & Policies

    Shipping from China

    Processing time

    7-10 business days

    Customs and import taxes

    Buyers are responsible for any customs and import taxes that may apply. I'm not responsible for delays due to customs.

    Payment Options

    Secure options
    • Accepts Etsy gift cards

    Returns & Exchanges

    I gladly accept returns and exchanges

    Just contact me within: 14 days of delivery

    Ship items back to me within: 30 days of delivery

    I don't accept cancellations

    But please contact me if you have any problems with your order.

    The following items can't be returned or exchanged

    Because of the nature of these items, unless they arrive damaged or defective, I can't accept returns for:

    • Custom or personalized orders
    • Perishable products (like food or flowers)
    • Digital downloads
    • Intimate items (for health/hygiene reasons)
    • Items on sale

    Conditions of return

    Buyers are responsible for return shipping costs. If the item is not returned in its original condition, the buyer is responsible for any loss in value.