Negative / Positive / Ceramics B1 to B135 B Indexable Insert
B Indexable Insert Identification Table ............................................. B2 Grade Comparison Chart (CVD / PVD Coating) ........................... B4
(Cermet, Cemented Carbide, Ceramics) ....... B6 (CBN, Polycrystalline Diamond) ..................... B7
B
Chipbreaker Comparison Chart .................................................... B8 Chipbreaker Selection .................................................................. B10
Negative M Class Chipbreakers for Low Carbon and General Steel: EFB / EFE ................ B16 Positive M Class Chipbreakers for Low Carbon and General Steel: EFB / ELB ................ B17 Positive M Class Chipbreaker for Steel, Stainless Steel, and Exotic Alloys: EGU ........... B18 Positive G Class Chipbreakers for Swiss Lathes: MEFF / MESL / MESI ....... B19 Negative Inserts C / 80° Diamond (With Hole) ................................ B20 D / 55° Diamond (With Hole) ................................ B31 R / Round (With Hole) ........................................... B39 S / Square (With Hole) .......................................... B40 S / Square (Without Hole) ..................................... B50 T / Triangular (With Hole) ...................................... B51 T / Triangular (Without Hole) ................................ B61 V / 35° Diamond (With Hole) ................................. B62 W / Trigon (With Hole) ........................................... B65 Positive Inserts C / 80° Diamond (With Hole) ................................ B70 D / 55° Diamond (With Hole) ................................ B82 R / Round (With Hole) ........................................... B90 S / Square (With Hole) .......................................... B92 S / Square (Without Hole) ..................................... B98 T / Triangular (With Hole) .................................... B101 T / Triangular (Without Hole) .............................. B115 V / 35° Diamond (With Hole) ............................... B119 W / Trigon (With Hole) ......................................... B128
C
D
(1) Turning insert listing order is negative type inserts followed by positive type inserts. (2) The order of listing in each type group is as follows: C (80° Diamond) → D (55° Diamond) → R (Round) → S (Square) → T (Triangular) → V (35° Diamond) → W (Trigon). (3) Listing of inserts with the same relief angle are provided for those with holes and then those without holes. (4) Inserts are grouped by shape and then further divided by size (small to large according to cutting edge length and thickness). Format of This Chapter
R
S
• Structure Diagram
( Shape → relief angle) (Hole Y / N) (Order of appearance)
T
C (80° Diamond)
By size (small → large) By size (small → large) By size (small → large) By size (small → large)
Negative
With hole
Without hole
D (55° Diamond)
Positive
With hole
Without hole
V
Symbols in Insert Diagrams
*Symbols conform to ISO13399.
L: Cutting edge length, IC: Inscribed circle, S: Thickness, RE: Nose radius, D1: Hole diameter (For CBN (SUMIBORON) and PCD (SUMIDIA), L indicates side length.)
W
Handed Inserts
*Typically, photos show right-handed inserts.
If the bottom right reads "Photo: Left-handed," this indicates an exception where the photo shows a left-handed insert.
Ceramic Negative Insert (With Hole / Without Hole) ............... B130 Ceramic Positive Insert (Without Hole) ..................................... B133
Insert Grades
(1) Each grade is carefully selected from Coated Carbide (CVD / PVD), Cermet, Carbide or Ceramic. (2) The listing of CBN (SUMIBORON) and PCD (SUMIDIA) are in the dedicated sections: CBN (SUMIBORON) page L30 and PCD (SUMIDIA) page M10.
Ceramic SG (SumiNotch) and Ceramic LNGX .......................... B133 Precautions when Using Wiper Inserts ..................................... B134
● : Standard stocked item « : Worldwide Warehouse Item ▲ : Limited Avaibility Item, made to order, or discontinued (please confirm stock availability).
Stock Markings and Symbols
Blank: Made-to-order item — mark: Not available
B1
B1
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