1Pcs Diamond Coated Diamond Grinding Disc 80-3000Grit Abrasive Disc Grinding Wheels Woodworking Tool 4inch 100mm Quake 150 grits

4" Diamond Grinding Disc 80-3000 Grit Flat Lap Wheel | 100mm

150 grits
$13.93 $16.72
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1Pcs Diamond Coated Diamond Grinding Disc 80-3000Grit Abrasive Disc Grinding Wheels Woodworking Tool 4inch 100mm Quake 150 grits
  • 1Pcs Diamond Coated Diamond Grinding Disc 80-3000Grit Abrasive Disc Grinding Wheels Woodworking Tool 4inch 100mm Quake 150 grits
  • 1Pcs Diamond Coated Diamond Grinding Disc 80-3000Grit Abrasive Disc Grinding Wheels Woodworking Tool 4inch 100mm Quake
  • 1Pcs Diamond Coated Diamond Grinding Disc 80-3000Grit Abrasive Disc Grinding Wheels Woodworking Tool 4inch 100mm Quake
  • 1Pcs Diamond Coated Diamond Grinding Disc 80-3000Grit Abrasive Disc Grinding Wheels Woodworking Tool 4inch 100mm Quake
  • 1Pcs Diamond Coated Diamond Grinding Disc 80-3000Grit Abrasive Disc Grinding Wheels Woodworking Tool 4inch 100mm Quake
  • 1Pcs Diamond Coated Diamond Grinding Disc 80-3000Grit Abrasive Disc Grinding Wheels Woodworking Tool 4inch 100mm Quake
  • 1Pcs Diamond Coated Diamond Grinding Disc 80-3000Grit Abrasive Disc Grinding Wheels Woodworking Tool 4inch 100mm Quake
  • 1Pcs Diamond Coated Diamond Grinding Disc 80-3000Grit Abrasive Disc Grinding Wheels Woodworking Tool 4inch 100mm Quake 150 grits
  • 1Pcs Diamond Coated Diamond Grinding Disc 80-3000Grit Abrasive Disc Grinding Wheels Woodworking Tool 4inch 100mm Quake
  • 1Pcs Diamond Coated Diamond Grinding Disc 80-3000Grit Abrasive Disc Grinding Wheels Woodworking Tool 4inch 100mm Quake
  • 1Pcs Diamond Coated Diamond Grinding Disc 80-3000Grit Abrasive Disc Grinding Wheels Woodworking Tool 4inch 100mm Quake
  • 1Pcs Diamond Coated Diamond Grinding Disc 80-3000Grit Abrasive Disc Grinding Wheels Woodworking Tool 4inch 100mm Quake
  • 1Pcs Diamond Coated Diamond Grinding Disc 80-3000Grit Abrasive Disc Grinding Wheels Woodworking Tool 4inch 100mm Quake
  • 1Pcs Diamond Coated Diamond Grinding Disc 80-3000Grit Abrasive Disc Grinding Wheels Woodworking Tool 4inch 100mm Quake
4" Diamond Grinding Disc 80-3000 Grit Flat Lap Wheel | 100mm

4" Diamond Grinding Disc 80-3000 Grit Flat Lap Wheel | 100mm

$13.93 $16.72
Color

4-Inch Diamond Coated Grinding Disc — Precision Abrasive for Lapidary, Glass & Gemstone Work

Take your lapidary, glass, and gemstone projects to the next level with this high-quality 4-inch (100mm) Diamond Coated Flat Lap Grinding Wheel. Featuring a 95% diamond-coated surface area and available in a wide range of grits from 80 to 3000, this disc delivers consistent, flat, and parallel grinding for hobbyists and professionals alike.

Key Features

  • Wide Grit Selection: Choose from 80#, 100#, 120#, 320#, 600#, 800#, 1000#, 1200#, 1500#, 2000#, or 3000# to match every stage of your grinding and finishing process.
  • High-Density Diamond Coating: Approximately 95% of the disc surface is coated with diamond abrasive on one side, ensuring aggressive material removal and long-lasting performance.
  • Perfectly Flat & Parallel: Engineered to precise tolerances, these discs meet exacting faceting and flat-lapping requirements for gemstones, glass, and rock.
  • Wet Use Recommended: Best used with water for cooler operation, reduced dust, and extended disc life.
  • Versatile Applications: Ideal for grinding gemstones, jewelry stones, glass, rock, carving knives, and other hard materials.
  • Standard Sizing: Outside diameter 4 inches (100mm), arbor hole 5/8 inch (16mm), thickness 1–1.3mm — fits most standard lapidary and bench grinder setups.

Specifications

Outside Diameter 4 inch / 100mm
Arbor Hole 5/8 inch / 16mm
Thickness 1–1.3mm (0.04–0.05 in)
Available Grits 80, 100, 120, 320, 600, 800, 1000, 1200, 1500, 2000, 3000
Coating Coverage ~95% (single side)
Recommended Use Wet grinding
Country of Origin Made in Mainland China

What's in the Box

  • 1x Diamond Coated Grinding Wheel (grit of your choice)

Learn more: OSHA on eye and face protection

Frequently Asked Questions

Q: What materials can I grind with this 4-inch diamond grinding disc?

A: This diamond abrasive flat lap wheel is suitable for grinding and finishing a wide range of hard materials including gemstones, jewelry stones, glass, rock, and carving knives. Its high-density diamond coating makes it especially effective for lapidary and glass-cutting applications.

Q: What grit should I choose for my diamond grinding disc?

A: Lower grits (80–120) are best for rapid material removal and shaping, mid-range grits (320–800) are ideal for smoothing and refining, and higher grits (1000–3000) are used for fine polishing and finishing. It is recommended to progress through multiple grits for the best results.

Q: Should I use this diamond abrasive disc wet or dry?

A: Wet use is strongly recommended. Running the disc with water helps keep temperatures low, reduces airborne particles, and significantly extends the life of the diamond coating, ensuring consistent grinding performance over time.

Q: Will this disc fit my existing grinder or lapidary machine?

A: This disc has a standard 5/8-inch (16mm) arbor hole and a 4-inch (100mm) outside diameter, making it compatible with most standard lapidary machines, flat lap units, and bench grinders that accept this size.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.

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