Sumitomo General Catalog 2025-2026

SUMIBORON® Coated CBN Series

Achieveshigherspeed,higheref ciencyand higher precision Coated CBN (SUMIBORON)

 General Features

With a highly thermal-resistant and tough CBN substrate coupled with a special ceramic coating, this series caters to a wide variety of applications, with improved precision and longer tool life compared to conventional CBN. Our extensive range, including more cost-effective, double-sided, multi-cornered one-use inserts, offers a selection of economical and easy-to-use tools.

L

 Features

Strong Brazing Utilises a proprietary brazing method with improved strength

Easy Edge Management Numbering of all cutting edges

Double-Sided Brazed SUMIBORON More cost effective than conventional one-use inserts

Special Ceramic Coating + High-strength CBN Substrate Provides longer tool life

 Cutting Edge Management

After use

Before use

The edge numbers are still visible after machining, which makes the management of used cutting edges easy.

L3

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