SUMIBORON InsertsGuidance for SUMIBORON Inserts

One-use Insert NU Type / NS Type ■ Characteristics

  • Affordable version of the once expensive sintered CBN material, at its best size.
  • One-use type eliminates regrinding thus making tool management easy.
  • Reduce required storage space with 10pcs pack.

Multi-cornered, One-use Insert ■ Characteristics

  • Insert with several brazed SUMIBORON one-use corners. Price per edge is more reasonable compared to normal single cornered, one-use type insert.
  • Coated SUMIBORON is available as a double-faced insert. Diamond shaped inserts have 4 cutting edges and Triangle shaped inserts have 6 cutting edges etc.
  • Multi-cornered, one-use type has G-class specification with side faces ground. In addition, all edges are numbered for easy cutting edge management.

One-use Wiper Insert

WG / WH

Type Type

■ Characteristics

  • SUMIBORON one-use insert with wiper edge for Hardened Steel machining.
  • Excellent surface roughness comparable to grinding.
  • Improved efficiency with higher speeds and feeds.
  • Lineup includes WG Type for low-feed cutting and WH Type for high-feed cutting.

One-use insert with chipbreaker

Break Master FV / LV / SV ■ Characteristics

Type Type Type

  • SUMIBORON one-use insert with chipbreaker. The SV Type is suited to carburized layer removal, and the LV Type/FV Type are suited to finishing hardened steel. L
  • Breaker included on the CBN edge, chipbreaking effect can be maintained throughout.
  • Unique breaker design can be applied to both hardened and non-hardened parts with effective chip control.

Solid SUMIBORON ■ Characteristics

  • 100% solid CBN structure. With no brazed portion, this grade is excellent for the roughing of Cast Iron at large depth of cut.