Diamond Twist Drill Bit

Diamond Twist Drill Bit

These are like a regular twist drill but coated in diamond grit making them possible to use on hard materials such as stone, glass, ceramics, porcelain, and shell. They are designed for enlarging holes rather than drilling holes.   Perfect for enlarging holes in pearls. They have diamond grit running along the tip and sides allowing them to remove material horizontally as well as vertically and are especially good for widening existing holes. Used by Jewelry Designers for drilling clean holes on Beach Sea Glass, Sea Shells, Rocks, Marbles, Stones, etc.Practical – Suitable to be used with hand drills, flex shafts and dremels.Experience needed, you may break few bits during practice. Use with water – do not run dry.


  • 0.8mm 10pcs Set Diamond Coated Twist Drill Bit

    0.8mm 10pcs Set Diamond Coated Twist Drill Bit

    0.8mm 10pcs Set Diamond...

    Diamond Twisted  drills are typically used for drilling pearls and enlarging/reaming holes in large variety of other materials. These drills provide faster drilling speeds, than most other type of d…
    $6.00
  • 0.8mm 20pcs Set Diamond Coated Twist Drill Bit

    0.8mm 20pcs Set Diamond Coated Twist Drill Bit

    0.8mm 20pcs Set Diamond...

    Diamond Twisted  drills are typically used for drilling pearls and enlarging/reaming holes in large variety of other materials. These drills provide faster drilling speeds, than most other type of d…
    $7.00
  • 1.0mm 10pcs Set Diamond Coated Twist Drill Bit

    1.0mm 10pcs Set Diamond Coated Twist Drill Bit

    1.0mm 10pcs Set Diamond...

    Diamond Twisted  drills are typically used for drilling pearls and enlarging/reaming holes in large variety of other materials. These drills provide faster drilling speeds, than most other type of d…
    $6.00
  • 1.0mm 20pcs Set Diamond Coated Twist Drill Bit

    1.0mm 20pcs Set Diamond Coated Twist Drill Bit

    1.0mm 20pcs Set Diamond...

    Diamond Twisted  drills are typically used for drilling pearls and enlarging/reaming holes in large variety of other materials. These drills provide faster drilling speeds, than most other type of d…
    $7.00
  • 1.2mm 10pcs Set Diamond Coated Twist Drill Bit Set

    1.2mm 10pcs Set Diamond Coated Twist Drill Bit Set

    1.2mm 10pcs Set Diamond...

    Diamond Twisted  drills are typically used for drilling pearls and enlarging/reaming holes in large variety of other materials. These drills provide faster drilling speeds, than most other type of d…
    $6.00
  • 1.2mm 20pcs Set Diamond Coated Twist Drill Bit

    1.2mm 20pcs Set Diamond Coated Twist Drill Bit

    1.2mm 20pcs Set Diamond...

    Diamond Twisted  drills are typically used for drilling pearls and enlarging/reaming holes in large variety of other materials. These drills provide faster drilling speeds, than most other type of d…
    $7.00
  • 1.5mm 10pcs Set Diamond Coated Twist Drill Bit

    1.5mm 10pcs Set Diamond Coated Twist Drill Bit

    1.5mm 10pcs Set Diamond...

    Diamond Twisted  drills are typically used for drilling pearls and enlarging/reaming holes in large variety of other materials. These drills provide faster drilling speeds, than most other type of d…
    $6.00
  • 1.5mm 20pcs Set Diamond Coated Twist Drill Bit

    1.5mm 20pcs Set Diamond Coated Twist Drill Bit

    1.5mm 20pcs Set Diamond...

    Diamond Twisted  drills are typically used for drilling pearls and enlarging/reaming holes in large variety of other materials. These drills provide faster drilling speeds, than most other type of d…
    $7.00
  • 1.8mm 10pcs Set Diamond Coated Twist Drill Bit

    1.8mm 10pcs Set Diamond Coated Twist Drill Bit

    1.8mm 10pcs Set Diamond...

    Diamond Twisted  drills are typically used for drilling pearls and enlarging/reaming holes in large variety of other materials. These drills provide faster drilling speeds, than most other type of d…
    $6.00
  • 1.8mm 10pcs Set Diamond Coated Twist Drill Bit

    1.8mm 10pcs Set Diamond Coated Twist Drill Bit

    1.8mm 10pcs Set Diamond...

    Diamond Twisted  drills are typically used for drilling pearls and enlarging/reaming holes in large variety of other materials. These drills provide faster drilling speeds, than most other type of d…
    $7.00
  • 2.0mm 10pcs Set Diamond Coated Twist Drill Bit

    2.0mm 10pcs Set Diamond Coated Twist Drill Bit

    2.0mm 10pcs Set Diamond...

    Diamond Twisted  drills are typically used for drilling pearls and enlarging/reaming holes in large variety of other materials. These drills provide faster drilling speeds, than most other type of d…
    $7.00
  • 2.0mm 20pcs Set Diamond Coated Twist Drill Bit

    2.0mm 20pcs Set Diamond Coated Twist Drill Bit

    2.0mm 20pcs Set Diamond...

    Diamond Twisted  drills are typically used for drilling pearls and enlarging/reaming holes in large variety of other materials. These drills provide faster drilling speeds, than most other type of d…
    $8.00

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