Inverted Trapezoid Drill Bit

The Diamond Inverted Trapezoid Carving Bur is designed for precise shaping, grinding, and undercut carving in hard materials such as stone, glass, ceramics, and metals. Its unique inverted trapezoid shape allows for effective access to narrow recesses, angled grooves, and sharp internal corners, making it especially valuable in lapidary, jewelry, restoration, and industrial detailing work.
Compatible with rotary tools and micromotors, this bur delivers exceptional control, edge definition, and durability in fine and complex applications.


  • 100pcs 2.35mm Shank  Inverted Trapezoid E Shape Diamond Drill Bit

    100pcs 2.35mm Shank Inverted Trapezoid E Shape Diamond Drill Bit

    100pcs 2.35mm Shank...

    Flat End Tapered-shaped diamond burs are perfect for carving, grinding and pre-forming both hard and soft material such as glass, stones, ceramics, bone and metals. Each bur has a 1-1/2" long mandrel …
    $9.50
  • 100Pcs 3.0mm Shank Diamond Tapered Inverted Cross End Rotary Drill Bit

    100Pcs 3.0mm Shank Diamond Tapered Inverted Cross End Rotary Drill Bit

    100Pcs 3.0mm Shank...

    diamond coated head. Wear-resistant, close to the sand surface, not easy to fall off, maintain sharpness, long wear. Its surface can be cleaned and restored to regain its original shape by using a dre…
    $35.00
  • 100pcs 3mm Shank  Inverted Trapezoid E Shape Diamond Drill Bit

    100pcs 3mm Shank Inverted Trapezoid E Shape Diamond Drill Bit

    100pcs 3mm Shank...

    Flat End Tapered-shaped diamond burs are perfect for carving, grinding and pre-forming both hard and soft material such as glass, stones, ceramics, bone and metals. Each bur has a 1-1/2" long mandrel …
    $12.00
  • 100pcs 3mm Shank Magnetic Inverted Trapezoid E Shape Diamond Burr Grinding Engraving Bit for Dremel

    100pcs 3mm Shank Magnetic Inverted Trapezoid E Shape Diamond Burr Grinding Engraving Bit for Dremel

    100pcs 3mm Shank Magnetic...

    Flat End Tapered-shaped diamond burs are perfect for carving, grinding and pre-forming both hard and soft material such as glass, stones, ceramics, bone and metals. Each bur has a 1-1/2" long mandrel …
    $28.00
  • 10pcs 2.35mm Shank Lapidary diamond Tapered Inverted Cross End Bur Drilling Engraving Tool Kits Drill Bits Metal

    10pcs 2.35mm Shank Lapidary diamond Tapered Inverted Cross End Bur Drilling Engraving Tool Kits Drill Bits Metal

    10pcs 2.35mm Shank...

    Use diamond bits for fine detailing, cutting, carving, engraving, touch-up and finishing on wood, glass, ceramics, jade, hardened steel, semi-precious stones, and other ultra-hard materials. Diamond b…
    $17.50
  • 10pcs 2.35mm Shank Lapidary diamond Tapered Inverted Cross End Bur Drilling Engraving Tool Kits Drill Bits Metal

    10pcs 2.35mm Shank Lapidary diamond Tapered Inverted Cross End Bur Drilling Engraving Tool Kits Drill Bits Metal

    10pcs 2.35mm Shank...

    Use diamond bits for fine detailing, cutting, carving, engraving, touch-up and finishing on wood, glass, ceramics, jade, hardened steel, semi-precious stones, and other ultra-hard materials. Diamond b…
    $17.50
  • 10pcs 6mm Shank  Inverted Trapezoid E Shape Diamond Drill Bit

    10pcs 6mm Shank Inverted Trapezoid E Shape Diamond Drill Bit

    10pcs 6mm Shank Inverted...

    Flat End Tapered-shaped diamond burs are perfect for carving, grinding and pre-forming both hard and soft material such as glass, stones, ceramics, bone and metals. Each bur has a 1-1/2" long mandrel …
    $9.50
  • 20pcs 1200Grit 2.35mm Shank  Inverted Trapezoid E Shape Diamond Burr

    20pcs 1200Grit 2.35mm Shank Inverted Trapezoid E Shape Diamond Burr

    20pcs 1200Grit 2.35mm...

    Fine Sand Suction Eye Socket Bead Grinding Head for Sand Jade Bodhi Root Do Ball Round Beads ball grinding head, suction eye coarse sand, grinding round beads tools is used to polish jade, amber, …
    $11.00
  • 20pcs 400Grit 2.35mm Shank  Inverted Trapezoid E Shape Diamond Burr

    20pcs 400Grit 2.35mm Shank Inverted Trapezoid E Shape Diamond Burr

    20pcs 400Grit 2.35mm...

    Fine Sand Suction Eye Socket Bead Grinding Head for Sand Jade Bodhi Root Do Ball Round Beads ball grinding head, suction eye coarse sand, grinding round beads tools is used to polish jade, amber, …
    $11.00
  • 20pcs 600Grit  2.35mm Inverted Trapezoid E Shape Diamond Burr

    20pcs 600Grit 2.35mm Inverted Trapezoid E Shape Diamond Burr

    20pcs 600Grit 2.35mm...

    Tapered inverted cylinder-shaped diamond burs are perfect for carving, grinding and pre-forming both hard and soft material such as glass, stones, ceramics, bone and metals. Each bur has a 1-1/2" long…
    $10.00

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