Collection: Copper Flat Polishing Laps
Copper Flat Polishing Laps – Solid Copper Laps for Gem, Glass & Stone Pre-Polishing
Professional solid copper flat polishing laps with master laps for precision grinding, smoothing, and pre-polishing of gemstones, glass, and lapidary materials on flat lap and faceting machines. Available in 6" and 8" diameters in 1mm and 3mm thickness — copper's excellent heat distribution and soft surface charges readily with diamond paste and other abrasive compounds for consistent, controlled pre-polish results on hard gem materials.
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Specifications
| Diameter |
Thickness |
Arbor |
Best Compound |
Price |
| 6" |
1mm |
1/2" |
Diamond paste, tin oxide |
$46.00 |
| 6" |
3mm |
1/2" |
Diamond paste, tin oxide |
$68.00 |
| 8" |
1mm |
1/2" |
Diamond paste, tin oxide |
$60.00 |
| 8" |
3mm |
1/2" |
Diamond paste, tin oxide |
$100.00 |
Key Features
- Solid copper construction for excellent heat distribution and long service life
- Soft copper surface charges readily with diamond paste for controlled pre-polish action
- 1/2" arbor bore — compatible with standard flat lap and faceting machine spindles
- 1mm and 3mm thickness options — thicker laps provide greater stability and longer life
- Ideal for pre-polishing hard gemstones before final polishing on tin or leather laps
Related Tools
Frequently Asked Questions
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Q: What polishing compounds work best with copper laps?
A: Copper laps work exceptionally well with diamond paste (1–6 micron) for pre-polishing hard gemstones. The soft copper surface holds diamond particles firmly, providing controlled cutting action. Tin oxide can also be used on copper for softer gem materials.
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Q: Should I use a 1mm or 3mm copper lap?
A: The 3mm lap offers greater rigidity and longer service life, making it the preferred choice for regular professional use. The 1mm lap is lighter and more economical, suitable for occasional use or when weight is a consideration on your machine.
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Q: What faceting machines are copper laps compatible with?
A: Copper flat polishing laps with 1/2" arbor bore are compatible with most standard flat lap and faceting machines. Always verify the lap diameter (6" or 8") and arbor bore size match your specific machine before ordering.
