10 pcs Soviet CBN Cutting Tool Inserts 3.95 mm Boron Nitride Composite

10 pcs Soviet CBN Cutting Tool Inserts Ø3.95 mm – Boron Nitride Composite USSR

Set of 10 vintage Soviet cutting inserts made from superhard composite material based on cubic boron nitride (CBN / Композит).
Manufactured in the USSR for metalworking and precision machining applications.
Specifications:
Material: Cubic Boron Nitride Composite (CBN)
Quantity: 10 pieces
Origin: USSR / Soviet Union
Condition: New old stock (NOS) / unused storage condition
These inserts were used for machining hardened steels, cast iron, and other difficult-to-machine materials. Soviet superhard composites are known for durability and wear resistance.
Suitable for collectors, machinists, toolmakers, and industrial use.
Package includes:
10 × CBN inserts
Notes:
Please check dimensions carefully before purchase.
You will receive exactly what is shown in the photos.
Vintage Soviet industrial tooling.
Keywords:
CBN insert, boron nitride, Soviet tooling, USSR tools, cutting insert, lathe tool, superhard material, composite insert, machinist tools, metalworking.

Available 5 lots.