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 Turning: EFB / EFE ....... B16 Positive M Class Chipbreakers for Low Carbon and General Steel Turning: EFB / ELB ...... B17 Chipbreaker for Hardened Steel Turning: EGH ..................................... B18 Chipbreakers for Aluminum Alloy and Non-Ferrous Metal Turning: (R/L)AX / (R/L)AY ....... B18 Chipbreaker Series for Stainless Steel Turning: EEF / EEG / EEM ..... 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) .................................... B52 T / Triangular (With Hole) ..................................... B54 T / Triangular (Without Hole) ................................ B65 V / 35° Diamond (With Hole) ................................ B66 W / Trigon (With Hole) .......................................... B69 Positive Inserts C / 80° Diamond (With Hole) ................................ B74 D / 55° Diamond (With Hole) ................................ B85 R / Round (With Hole) ........................................... B92 S / Square (With Hole) .......................................... B94 S / Square (Without Hole) .................................. B100 T / Triangular (With Hole) ................................... B104 T / Triangular (Without Hole) .............................. B117 V / 35° Diamond (With Hole) .............................. B121 W / Trigon (With Hole) ........................................ B128
C
D
Format of This Chapter
R
(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 Type) → D (55° Diamond Type) → R (Round Type) → S (Square Type) → T (Triangular Type) → V (35° Diamond Type) → W (Trigon Type). (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).
S
• Structure Diagram
( Shape → relief angle)
(Hole Y / N)
(Order of appearance) By size (small → large) By size (small → large) By size (small → large) By size (small → large)
T
C (80° Diamond Type)
Negative
With hole
Without hole
D (55° Diamond Type)
With hole
Positive
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
B1
Blank: Made-to-order item — mark: Not available
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