Q: Which grit should I start with?
Start with the 400x for general lapping, truing water stones or shaping a primary bevel; reach for the 140x only when you need to remove more material fast.
60K8230 - 140x (100µ) Atoma Diamond Plate
Grit:
Choose an option to view item availability.
In spite of their impressive qualities, these plates are little-known outside Japan. Instead of being distributed evenly, the monocrystalline diamonds are arranged in clusters, which abrade more aggressively than individual particles. This, coupled with their high fracture resistance, yields a surface that cuts quickly, wears slowly and produces a consistent scratch pattern. Swarf collects in the channels around the clusters, minimizing loading and hydraulic lock.
The plates can be flushed with water when used on steel, but we found a light oil preferable. The diamonds of the 140x and 400x are electro-bonded to a steel sheet (the 1200x is electro-bonded to a stainless-steel sheet) that is mounted to a 10mm thick aluminum block, for an overall flatness of ±0.04mm. This construction makes the plates durable, rust resistant and reliable for lapping.
The 140x is for rapid material removal; the 400x is suitable for fast lapping, truing water stones or shaping a primary bevel; the 1200x can be used for fine lapping or general sharpening, and leaves a toothed edge on kitchen knives. All are 75mm wide by 210mm long (approximately 3" × 8 1/4").
Start with the 400x for general lapping, truing water stones or shaping a primary bevel; reach for the 140x only when you need to remove more material fast.
Yes, they can be flushed with water when used on steel, though a light coating of oil tends to work a little better.
This Atoma diamond plate's 1200x grit suits fine lapping and general sharpening, and it leaves a toothed edge well suited to kitchen knives.
Clustering the diamonds lets them abrade more aggressively than individual particles, so the surface cuts quickly, wears slowly and leaves a consistent scratch pattern.
| Materials | Aluminum block; monocrystalline diamond surface electro-bonded to steel sheet (140x, 400x) or stainless-steel sheet (1200x) |
| Dimensions | 75mm × 210mm (about 3" × 8 1/4"); 10mm thick aluminum block |
| Includes | Diamond plate |
| Package Quantity | 1 item |
| Warranty | Lee Valley Satisfaction Guarantee |
Options:
Grit
Variations:
Atoma Diamond Plates
In spite of their impressive qualities, these plates are little-known outside Japan. Instead of being distributed evenly, the monocrystalline diamonds are arranged in clusters, which abrade more aggressively than individual particles. This, coupled with their high fracture resistance, yields a surface that cuts quickly, wears slowly and produces a consistent scratch pattern. Swarf collects in the channels around the clusters, minimizing loading and hydraulic lock.
The plates can be flushed with water when used on steel, but we found a light oil preferable. The diamonds of the 140x and 400x are electro-bonded to a steel sheet (the 1200x is electro-bonded to a stainless-steel sheet) that is mounted to a 10mm thick aluminum block, for an overall flatness of ±0.04mm. This construction makes the plates durable, rust resistant and reliable for lapping.
The 140x is for rapid material removal; the 400x is suitable for fast lapping, truing water stones or shaping a primary bevel; the 1200x can be used for fine lapping or general sharpening, and leaves a toothed edge on kitchen knives. All are 75mm wide by 210mm long (approximately 3" × 8 1/4").
Choose an option to view item availability.
Choose an option to view item availability.
Choose an option to view item availability.
