Features of PCD/PCBN cutting tool/wear-resistant part

PCD/PCBN cutting tool/wear-resistant part

This tool has a polished tip and is made by brazing material created by sintering the diamond (CBN) grains with a binder (metal, ceramics) with high temperatures and high pressure (1200C or more, 40,000 to 60,000hPa) onto a metal core.

Diamond sintered bodies and CBN sintered bodies

Lathe processing of aluminum




PCD/PCBN and Work Materials

●Polycrystalline diamond tool - PCD (ED)

By adopting PCD for the edge, this tool is very effective for the cutting of nonferrous metals (aluminum, copper, biscuit-bake ceramic, carbon, MMC, CFRP) and plastic.Part life can be extended by using this tool for slicing surfaces.


  • Long-life ; 10 to 50 times compared with the tungsten carbide.
  • Roughness ; Nearly mirror finished surface processing that cannot be realized by the tungsten carbide

Kind of PCD Knoop hardness [kg/l] Grain size μ Features Workpiece material and application
ED-1 6500

0.5 ~ 1 High fracture-resistance. Can obtain good finished surface accuracy. Plastic (acrylic) Aluminum [interrupted cutting]
ED-5 2 ~ 5 Superior wear resistance. Can obtain good finished surface accuracy. Aluminum Copper
ED-10 10 Good all-around tool for general cutting. Aluminum Copper
ED-25 25 Strong cohesion between grains provides superior wear resistance High-silicon aluminum Carbon, biscuit-bake ceramic
ED-50 ~ 50 Superior wear-resistance and fracture-resistance MMC CFRP




●Polycrystalline cubic boron nitride - PCBN (EB)

By adopting PCBN for the edge, this tool is more effective in cutting hardened steel, cast iron and heat-resistant alloys than tools made with conventional materials.


  • Can cut hardened steel and hard cast iron that in the past could only be cut with the help of grinding.
  • Realizes faster cutting speeds and longer tool life, compared to cermet and tungsten carbide, for cutting cast iron (FC, FCD) and ferrous sintered metals such as valve seats (VSR).
  • Allows for the cutting of high-speed steel, hard cast iron and heat-resistant alloys such as Inconel and Stellite.

Kind of PCBN Knoop hardness [kg/l] Grain size μ Content of CBN / Binder Workpiece material and application
EB-10 3500

2 Content of CBN90% Metal binder Gray cast iron Heat-resistant alloy 
[Interrupted cutting that generates heat]
EB-20 2 Content of CBN90% Titanium binder Hard cast iron Ferrous sintered metal
 [Heavy interrupted cutting]
EB-30 2 Content of CBN70% Titanium nitride binder Hardened steel
[Continuous, interrupted finish cutting]
EB-40 2 Content of CBN50% Titanium nitride binder Hardened steel
[Heavy interrupted cutting]
EB-50 4 Content of CBN75% Titanium binder Ferrous sintered metal
[Continuous cutting]





EISEN's highly accurate re-sharpening technologies can make your tools as good as new. 
The ability to reuse tools in this manner supports economical operations.








Selling points of EISEN


Quick delivery

The integrated manufacturing system has realized innovative qui ck delivery (the shortest delivery time is 5 hours).


High accuracy

We provide only high-quality products based on precise grinding technologies and accurate measurement technologies, and backed by our long experience as a gauge manufacturer.

Tool grinding by high-performance machine





Wide variety

We can propose the best tool material, shape, and performance regardless of manufacturer of PCD/PCBN material.