61M0399 - Shapton Diamond Glass Lapping Plate (DGLP)
The DGLP uses float glass as a substrate and has recesses optimized for lapping stones, ensuring that swarf is carried away from the working surface while preventing hydraulic lock during use. Diamond grit size is in the 45µ to 54µ range, making the DGLP suitable for use only with stones finer than 30µ (0.4µ to 30µ range).
It has a working surface 254mm × 72mm (10" × 2 13/16") and weighs about 750g (26.5 oz). With an over-molded rubber frame, it can be used on the stone and field holder or on its own.
Splash the plate with water, then slide the stone across the surface forward and back, then diagonally, rinsing away slurry as it builds up in the grooves. This diamond lapping plate can also be turned over and slid across a stationary stone if that's easier to control.
No, it's designed for stones finer than 500 grit (30 microns); rougher stones will wear down the diamond surface much faster. For coarser stones, a dedicated coarse lapping plate or diamond stone is a better match.
Yes, non-Shapton stones should be soaked until they've absorbed as much water as they can hold, and Shapton stones need about 2 to 3 minutes in water before lapping.
No, avoid hot water entirely. Moving from hot to cold water risks cracking the glass plate, so stick with room-temperature water throughout.
It should be retired immediately. Its diamond surface is a thin metal film on glass with limited shock resistance, so a damaged plate can be unsafe to keep using.
| Materials | Float glass; diamond-plated metal surface; molded rubber frame |
| Dimensions | 10" × 2 13/16" working surface |
| Weight | 750g (26.5 oz) |
| Package Quantity | 1 item |
| Country of Origin | Japan |
| Includes | Diamond lapping plate |
| Capacity | Suited to stones finer than 500 grit (30 microns) |
| Safety | Diamond surface has limited shock resistance; do not use if cracked or chipped |
| Warranty | Lee Valley Satisfaction Guarantee |
WARNING: This product can expose you to chemicals including Nickel/nickel compounds, which is known to the State of California to cause Cancer. For more information, go to www.P65Warnings.ca.gov (opens in new tab).
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Shapton Diamond Glass Lapping Plate (DGLP)
The DGLP uses float glass as a substrate and has recesses optimized for lapping stones, ensuring that swarf is carried away from the working surface while preventing hydraulic lock during use. Diamond grit size is in the 45µ to 54µ range, making the DGLP suitable for use only with stones finer than 30µ (0.4µ to 30µ range).
It has a working surface 254mm × 72mm (10" × 2 13/16") and weighs about 750g (26.5 oz). With an over-molded rubber frame, it can be used on the stone and field holder or on its own.
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