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Diamond Step Drill Bit Set (20mm/35mm/50mm) - M10 Thread Hole Opener for Tile, Concrete, Marble - Chamfer & Polish with Angle Grinder in Kuwait Diamond Step Drill Bit Set (20mm/35mm/50mm) - M10 Thread Hole Opener for Tile, Concrete, Marble - Chamfer & Polish with Angle Grinder in Kuwait Diamond Step Drill Bit Set (20mm/35mm/50mm) - M10 Thread Hole Opener for Tile, Concrete, Marble - Chamfer & Polish with Angle Grinder in Kuwait Diamond Step Drill Bit Set (20mm/35mm/50mm) - M10 Thread Hole Opener for Tile, Concrete, Marble - Chamfer & Polish with Angle Grinder in Kuwait Diamond Step Drill Bit Set (20mm/35mm/50mm) - M10 Thread Hole Opener for Tile, Concrete, Marble - Chamfer & Polish with Angle Grinder in Kuwait Diamond Step Drill Bit Set (20mm/35mm/50mm) - M10 Thread Hole Opener for Tile, Concrete, Marble - Chamfer & Polish with Angle Grinder in Kuwait

Diamond Step Drill Bit Set (20mm/35mm/50mm) - M10 Thread Hole Opener for Tile, Concrete, Marble - Chamfer & Polish with Angle Grinder

KWD 8.500
All electronics ship with US style plugs. You may need a voltage converter or a plug adapter.
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Special Features

  • 3 Sizes in 1 Tool：Save time and money with combined 20mm/35mm/50mm steps – precisely enlarge, chamfer, or polish holes in tile, marble, and concrete without switching bits
  • Diamond-Enhanced Durability：High-density diamond particles bonded to a steel core resist wear when cutting hard materials, maintaining sharpness longer than standard bits
  • Universal M10 Thread Compatibility：Directly fits 100-type angle grinders (no adapter needed); includes conversion rod for handheld drills – perfect for jobsites or DIY workshops
  • Dry/Wet Cutting Flexibility：Engineered for smooth operation with or without water cooling. Minimize dust during dry cuts or extend bit life with wet drilling
  • Professional Finish, Reduced Chipping：Multi-layer conical design gradually opens holes to prevent cracking in tile/stone, leaving clean edges for pipes or fixtures

Description

Upgrade Your Drilling Toolkit

This 2-piece diamond step drill bit set tackles the toughest hole-modifying tasks. Whether you're a contractor installing bathroom fixtures or a DIYer building a patio, our triple-step design (20mm/35mm/50mm) handles enlarging, beveling, and polishing in one go – no more juggling multiple tools.

Built for Real-World Demands

Forged with industrial-grade diamond grit and shock-resistant steel, these bits chew through tile, engineered stone, and concrete without chipping. The M10 threaded shank locks securely onto angle grinders, while the included adapter rod lets you use standard drills. Plus, the straight-flute design clears debris fast, keeping your cuts smooth.

Smart Features for Safer Work

→ Graduated steps reduce slippage on curved surfaces
→ Wax-infused coating minimizes heat buildup
→ Works on granite, quartzite, marble & ceramic
→ Note: For best results on hand drills, use low RPM and firm pressure. Requires proper PPE (goggles/dust mask).

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