What are Diamond Cutting Tools?

Generally, diamond Cutting Tools or Polycrystalline Diamond (PCD) cutting tools can cut aluminum, brass and copper, graphite, and other materials like wood, plastic, and carbon-fiber-reinforced polymer (CFRP).

Basically, diamond cutting tools are used to obtain high abrasive resistance and high hardness. Also, these motives result in a longer life for the cutter in comparison to conventional cutters.

Moreover, they can be customized to fit your exact measurement specifications for high precision.

What is CBN Cutting Tool?

Polycrystalline Carbon Boron Nitride (PCBN) or known as CBN cutting tools have high resistance to heat abrasion that is perfect for fine finishing and effective for tolerance control. They are also suitable for iron, cast iron, sintered material, and other hardened materials (HRC50 and above).

Furthermore, PCBN cutting tools are typically applied with inserts and round tools which include endmills, reamers and boring tools. Whereas, CBN tools can help reduce the production costs due to more efficient process of turning and milling.

CBN and Diamond cutting tools

Basically, there are materials that can go along with both the cutting tools and some work with either one. It is important for you to know what materials you are using for this machining purpose so you would understand the functions and maintenance parts of CBN and PCD cutting tools.

Materials to ground (CBN Cutting Tools)

  • Carbon steels
  • High-speed steels
  • Tool steels
  • Alloy steels
  • Hardening steels
  • Stainless steels
  • Bearing steels
  • Heat resistant alloys, etc.

Materials to ground (Diamond Cutting Tools)

  • Titanium alloys
  • Glass
  • Crystal
  • Ceramics
  • Cermets
  • Silicon
  • Ferrites
  • Concrete, etc.

Materials to ground (CBN and Diamond Cutting Tools)

  • Aluminium
  • Alloys
  • Cast iron
  • Tungsten
  • Frame-sprayed metals
  • Magnetic materials

Uses of CBN Cutting Tools

In general, various industries require the use of CBN cutting tools in manufacturing products. Especially the ones in relation to metalwork. Hence, below are the listed industries and their applications.

Workpiece Application
Tool steel/ Carbon tool steel, Alloy tool steel Cutting tools, metal moulds, rolling-mill/forming rolls
Heat resistant steel, heat resistant alloy Engine parts, jet engine parts, gas turbine parts, nuclear reactor parts
Sprayed metal, cast iron Corrosion-resistant parts, wear-resistant parts, rolling-mill/forming rolls, piston groove, cylinder bore
Hardened alloy steel, Chrome-molybdenum steel, Nickel-chrome-molybdenum steel Machine parts (gears, shafts)
Bearing steel Bearings
Sintered metal Valve seats, valve guides

Uses of Diamond Cutting Tools

In essence, diamond cutting tools are famous for their high precision cutting process that result in neat and precise machined metal products. Moreover, these high-precision cutting tools can be used for non-ferrous metal as well as non-metal items. Below are some of the listed materials.

Workpiece Application
Nonferrous metal

Aluminium, Aluminium alloy,

Cast aluminium alloy

Automobile (engines, case, chassis, aluminium wheels, etc.)
Aircraft, electric machinery/appliances (cases, housing, compressor parts, etc.)
Precision machine (HD cases, cameras, VTR/camcorders, measuring machines, sewing machines, copier drums, etc.)
General machinery (hydraulic/pneumatic machines, gas appliances, mechanical parts, etc.)


Copper alloy, Cast copper alloy

Automobile and vessel (shafts, pumps, gears, bearings, electric power steering, etc.)
Electric machinery/appliances (motors, commutators, heat exchangers, hydraulic components, etc.)
General/precision machinery (bearings, bushes, bolts, etc.)
Tungsten carbide Cutting of semi-sintered and sintered (metal moulds, etc.)
Ceramics Semi sintered and sintered (ceramic industry, bricks, ceramics)

Plastics (FRP, MC nylon, acrylic, polycarbonate, PCB (glass epoxy + copper foil)).

Carbon, graphite, black lead, ferrite, brake shoes, pottery, rubber (soft and hard), etc.

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Why are diamonds used in industrial cutting?

Basically, one of the most significant reasons you need to know why diamond cutting tools are famous in industrial cutting is their hardness.

Which also means they consist of small particles of industrial-grade diamonds that are perfect as embedment in saw blades, grinding wheels and drill bits.


CBN and Diamond Cutting Tools function on various materials

All in all, our cutting tools meet your needs via customised tool designs and advanced manufacturing technologies.

We suggest you consult ASIME, the ISO Certified Precision Tools manufacturer, who has been in the industry for more than 20 years. We speak high-end precision tools manufacturing especially both the CBN and Diamond Cutting Tools. 

So look no further as we take great care in manufacturing high precision tools and are always following DOE and ISO standards. Because we ensure that our tools and services are nothing short of world-class.

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