6 Best Diamond Drill Bits of 2024

A must-have for flooring and bathrooms, Diamond Drill Bits make quick work of cutting into tiles made out of marble, glass, stone, slate, porcelain or ceramic materials. Their diamond cutting surfaces make it much easier to get the bit started for drilling and allow the bits to outlast other types.

DEWALT 3/8-Inch Diamond Drill Bit

DEWALT 3/8-Inch Diamond Drill Bit

Features of this product:

  • Diamond welded tip for greater life and durability
  • Reverse spiral thread delivers continuous water feed for longer life and increased speed
  • Core ejection slot removes plug for repetitious holes


MAGBIT 3/16-Inch Diamond Tipped Tile Drill Bit

MAGBIT 3/16-Inch Diamond Tipped Tile Drill Bit

Features of this product:

  • Hollow core tile drills
  • 30 holes per drill minimum
  • cuts glass brick
  • Cuts porcelain, ceramic tile, masonry, stone
  • lubricate with water during use


Hitachi 5/8-Inch Diamond Grit Drill Bit

Hitachi 5/8-Inch Diamond Grit Drill Bit

Features of this product:

  • The 5/8-Inch diamond grit drill bit will drill through glass, marble, class 5 porcelain, granite and slate
  • Outperforms the standard carbide glas and tile bits on the market today, both in speed of drilling and the number of holes that can be drilled per bit
  • These bits feature raised lips with diamond grit particles that are uniquely sintered in place allowing the diamonds to adhere to the bit
  • The Hitachi diamond grit drill bit bodies are constructed of hardened and tempered thin wall alloy steel
  • Comes with a 30-day limited warranty


Steelex Plus 1/4-Inch Diamond Burr Shank Set, 10-Piece

Steelex Plus 1/4-Inch Diamond Burr Shank Set, 10-Piece

Features of this product:

  • These 1/4″ shank 150 grit burrs work well in drills and die grinders and feature the 10 most popular burr profiles
  • This set comes in a nice plastic case for easy storage
  • Maximum 20,000 RPM


Grip-Rite Wet Diamond Core Bit, 2-1/2 by 0.155 by 1-1/4-7, 8mm Segment

Grip-Rite Wet Diamond Core Bit, 2-1/2 by 0.155 by 1-1/4-7, 8mm Segment

Features of this product:

  • Diamond core bits
  • Applications: concrete, pavers, brick and stone
  • Featuring a 14″ barrel
  • For wet use


BOA Diamond Drill Set, 5-Piece

BOA Diamond Drill Set, 5-Piece

Features of this product:

  • Tough steel body for durability
  • 5 piece set contains 5 millimeter, 6 millimeter, 7 millimeter, 8 millimeter, 10 millimeter
  • Tungsten carbide grit for drilling holes in many materials
  • Includes water cooling device for keeping drill bits cool
  • Ideal for tile, glass, porcelain, terracotta, cement