Diamond Lapidary Grinding Wheel 200mm | #80–#600 Grit Grinder
Diamond Lapidary Grinding Wheel 200mm | #80–#600 Grit Grinder
Diamond Lapidary Grinding Wheel — Electroplated, Multi-Grit, 200×38×25.4mm
Upgrade your lapidary or metalworking setup with this precision-engineered Electroplated Diamond Plastic Grinding Wheel. Available in six grit options — #80, #200, #220, #320, #400, and #600 — this wheel handles everything from aggressive stock removal to fine finishing on the hardest materials. The CE-certified construction pairs a reinforced steel outer ring with a high-quality ABS plastic matrix, keeping overall weight low while delivering outstanding grinding strength and stability.
Key Features
- Single Concave Plane Design: Lightweight and balanced, compatible with both long-axis and short-axis grinders. The one-sided concave profile reduces shaft-length requirements for easier machine compatibility.
- Thickened Diamond Abrasive Layer: Uniform, precision-distributed diamond grains deliver consistent, high-efficiency material removal across every pass.
- Reinforced Steel Ring + ABS Matrix: High-pressure assembly process joins the steel ring to the ABS core for a rigid, vibration-resistant structure that places minimal load on your motor — even low-power grinders handle it with ease.
- Tapered Entry Bore: The tapered hole entrance makes installation smooth and straightforward, reducing shock to the wheel during mounting. Ideal where tight shaft-to-bore tolerances are required.
- Wide Material Compatibility: Designed for grinding and contouring super-hard materials including gems, granite, marble, glass, tungsten steel, carbide, and ceramics — perfect for lapidary work, jewelry shaping, and precision metalworking.
- CE Certified: Meets CE safety standards for added confidence in workshop and studio environments.
Specifications
| Type | Electroplated Diamond Plastic Grinding Wheel |
| Material | Steel + ABS Plastic |
| Available Grits | #80, #200, #220, #320, #400, #600 |
| Outer Diameter | 200 mm (≈ 7.87 in) |
| Thickness | 38 mm (≈ 1.50 in) |
| Bore / Aperture | 25.4 mm (1 in) |
| Certification | CE |
| Country of Origin | Made in Mainland China |
What's in the Box
- 1 × Electroplated Diamond Plastic Grinding Wheel (grit of your choice)
Who Is This For?
This grinding wheel is ideal for lapidary artists, jewelers, stone sculptors, glassworkers, and metalworkers who need reliable, consistent abrasive performance. Whether you're shaping raw gemstones, smoothing marble edges, or contouring carbide tool blanks, having the right grit at hand makes all the difference. Select a coarser grit like #80 for rapid material removal, and step up to #400 or #600 for a refined, near-polished surface.
For guidance on safe grinding practices and proper use of abrasive wheels in workshop settings, see the OSHA Abrasive Wheel Machinery Safety Guidelines.
Frequently Asked Questions
Q: What grit should I choose for shaping gemstones with a diamond lapidary grinding wheel?
A: For initial shaping and removing large amounts of material from hard gemstones, start with a coarser grit such as #80. Once the basic shape is established, move to #200 or #320 for intermediate smoothing, then finish with #400 or #600 for a fine, pre-polish surface. Having multiple grits on hand gives you full control over the lapidary process.
Q: Is this diamond grinding wheel compatible with low-power bench grinders?
A: Yes. The reinforced ABS plastic matrix and steel ring construction significantly reduce the overall weight of the wheel, placing minimal load on the motor. This means even lower-power bench grinders can drive the wheel effectively without strain.
Q: What materials can this electroplated diamond grinding wheel cut and grind?
A: This wheel is engineered for super-hard materials, including natural gemstones, granite, marble, glass, tungsten carbide, ceramics, and other hard metals. It is not intended for soft metals like aluminum or copper, where clogging may occur.
Q: What does the 200×38×25.4mm size specification mean?
A: The three dimensions refer to the wheel's outer diameter (200 mm), thickness/width (38 mm), and bore/arbor hole diameter (25.4 mm / 1 inch). Always verify that your grinder's arbor and spindle accommodate these measurements before purchasing.
Q: How do I safely install the diamond grinding wheel?
A: The tapered bore entrance makes installation straightforward — align the wheel with the spindle and press firmly. Ensure the machine is fully powered off and unplugged before installation. Always follow your grinder manufacturer's instructions and refer to OSHA abrasive wheel safety guidelines for best practices.