Diamond Grit Coating
National Diamond Tool & Coating manufactures standard and custom electroplated diamond grit coated tools for grinding, cutting, and machining abrasive materials.
Our diamond grit coating capabilities include grinding wheels, hole saws, routers, chamfering tools, and specialty tooling. We offer a variety of diamond grit sizes and custom configurations to meet specific machining requirements.
In addition to manufacturing new tooling, we provide diamond tool stripping and replating services to restore worn tools and extend the usable life of existing tool bodies.
Electroplated Diamond Grit Coating
Electroplated diamond tooling utilizes a single layer of synthetic diamond particles bonded to a metal substrate through an electroplating process.
The diamond particles are held in place by a metallic bond, typically nickel, leaving exposed diamond cutting points that provide effective material removal and abrasion resistance.
Unlike conventional bonded grinding wheels, single-layer electroplated diamond tools maintain their original geometric profile throughout their usable life without requiring routine dressing.
Electroplated diamond grit coating is particularly suitable for tools with complex geometries, specialized profiles, and applications requiring consistent abrasive cutting performance.
Diamond Grit Coated Tools
National Diamond Tool & Coating manufactures a variety of standard and custom diamond grit coated tools for industrial applications.
Diamond Grinding Wheels
Electroplated diamond grinding wheels are available in various diameters, profiles, and grit sizes for grinding abrasive and non-ferrous materials.
Diamond Hole Saws & Core Drills
Diamond grit coated hole saws and core drills for cutting and drilling composites, ceramics, fiberglass, and other abrasive materials. Custom diameters, cutting depths, and configurations are available.
Diamond Grit Routers
Diamond grit coated routers are used for trimming, profiling, and machining abrasive composite materials. Custom geometries, pilot configurations, and coolant provisions are available.
Diamond Chamfering & Countersinking Tools
Custom diamond grit coated chamfering and countersinking tools for machining abrasive materials and producing specific edge profiles.
Diamond Form Grinding Wheels
Electroplated diamond form wheels can be manufactured with custom profiles for specialized grinding operations requiring consistent tool geometry.
Custom Diamond Grit Tooling
Specialty tools manufactured or coated to customer drawings, specifications, or existing tool samples. Custom designs are available for unique grinding, cutting, and machining applications.
Diamond Tool Strip & Replate Services
National Diamond Tool & Coating offers stripping and replating services for worn electroplated diamond tools.
As diamond grit coated tools wear, the abrasive particles gradually lose their cutting effectiveness. In many cases, the underlying tool body remains suitable for continued use.
Our strip and replate process removes the existing diamond grit coating and applies a new layer of diamond abrasive to the original tool body.
Replating can provide a cost-effective alternative to manufacturing a completely new tool, particularly for custom or precision-machined tooling.
Benefits of Diamond Tool Replating
Reuse existing tool bodies
Reduce replacement tooling costs
Restore abrasive cutting performance
Extend the service life of custom tooling
Reduce the need to manufacture replacement tool bodies
Tools are evaluated to determine whether the existing substrate is suitable for stripping and replating.
Available Diamond Grit Sizes
Diamond grit coated tools are available in a variety of abrasive grit sizes to accommodate different machining applications.
The appropriate grit size depends on the workpiece material, desired surface finish, material removal requirements, and tool geometry.
Coarse Diamond Grit (20-60 Mesh)
Generally used for aggressive material removal and applications where cutting speed is prioritized over surface finish.
Medium Diamond Grit (80-140 Mesh)
Provides a balance between material removal and surface finish for general grinding and cutting applications.
Fine Diamond Grit (170+ Mesh)
Typically selected for finishing operations and applications requiring improved surface quality or more controlled material removal.
Custom grit sizes and configurations are available based on application requirements.
| Grit Mesh | Build Up Per Side (in) | Tolerance Per Side (+/-) (in) |
| 20 (20/30) | 0.0360 | 0.005 |
| 30 (30/40) | 0.0250 | 0.005 |
| 40 (40/50) | 0.0180 | 0.003 |
| 50 (50/60) | 0.0130 | 0.003 |
| 60 (60/70) | 0.0110 | 0.0025 |
| 80 (80/100) | 0.0075 | 0.002 |
| 100 (100/120) | 0.0063 | 0.002 |
| 120 (120/140) | 0.0053 | 0.002 |
| 140 (140/170) | 0.0043 | 0.0015 |
| 170 (170/200) | 0.0038 | 0.0015 |
| 200 (200/230) | 0.0032 | 0.001 |
| 230 (230/270) | 0.0027 | 0.001 |
| 270 (270/325) | 0.0024 | 0.001 |
| 325 (325/400) | 0.0019 | 0.0008 |
| 400 (400/500) | 0.0017 | 0.0008 |
Materials & Applications
Diamond grit coated tools are commonly used for grinding, cutting, and machining abrasive materials, including:
Fiberglass and reinforced composites
Carbon fiber reinforced plastics (CFRP)
Graphite
Ceramics
Glass
Carbide
Plastics and engineered polymers
Phenolic materials and laminates
Other abrasive and non-metallic materials
Tool geometry, abrasive grit size, and cutting conditions should be selected based on the material and machining operation.
Request a Quote
National Diamond Tool & Coating manufactures custom electroplated diamond tools and provides diamond grit stripping and replating services.
Contact us with your tool drawing, part number, existing tool sample, or application requirements for pricing and availability.