Cubic Boron Nitride (CBN) Inserts

Cubic Boron Nitride (CBN) inserts are cutting-edge tools that excel in machining hardened materials like steel, cast iron, and high-temperature alloys. They have exceptional wear resistance, thermal stability, and cutting performance. WIDIA CBN inserts are indispensable in applications requiring high precision and efficiency in turning, milling, or grinding. Select from several grades, geometries and shapes.

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    Workpiece Material
    Workpiece Material
    • K Cast Iron (6)
      • K1
        Gray Cast Iron 120-290 HB; <32 HRC; 125-500 N/mm^2 UTS(6)
    • H Hardened Materials (62)
      • H1
        Hardened Materials 44-48 HRC(62)
      • H2
        Hardened Materials 48-55 HRC(62)
      • H3
        Hardened Materials 56-60 HRC(62)
      • H4
        Hardened Materials >60 HRC(62)
    Cutting Condition
    Cutting Condition
    • Heavily Interrupted Cut (16)
    • Lightly Interrupted Cut (29)
    • Smooth Cut (36)
    • Varying Depth of Cut (7)
    Cutting Edges Per Insert
    Cutting Edges Per Insert
    • 1.0 (3)
    • 2.0 (52)
    • 3.0 (10)
    • 4.0 (3)
    Cutting Edges Per Insert MintoCutting Edges Per Insert Max
    Corner configuration
    Corner Radius
    Corner Radius
    • 0.008 in(2)
    • 0.016 in(24)
    • 0.031 in(32)
    • 0.047 in(5)
    • 0.188 in(1)
    • 0.25 in(4)
    Corner Radius MintoCorner Radius Max
    Corner Radius
    Corner Radius
    • 0.2 mm(2)
    • 0.4 mm(24)
    • 0.8 mm(32)
    • 1.201 mm(5)
    • 4.775 mm(1)
    • 6.351 mm(4)
    Corner Radius MintoCorner Radius Max
    Application
    Minimum Depth of Cut
    Minimum Depth of Cut
    Minimum Feed
    Minimum Feed
    Grade Of Cutting Tool
    Grade Of Cutting Tool
    • WBH10P (13)
    • WBH10U (6)
    • WBH20P (29)
    • WBH30P (14)
    • WBH40C (1)
    • WBK40U (3)
    • WBK45U (2)
    Front-End
    Insert Shape
    Insert Shape
    • C-DIAMOND/RHOMBIC 80 (24)
    • D-DIAMOND/RHOMBIC 55 (18)
    • R-ROUND (5)
    • S-SQUARE 90 (1)
    • T-TRIANGLE 60 (9)
    • V-DIAMOND/RHOMBIC 35 (9)
    • W-TRIGON 80 (2)
    Insert Geometry
    Shape
    Shape
    • C-DIAMOND/RHOMBIC 80 (24)
    • D-DIAMOND/RHOMBIC 55 (18)
    • R-ROUND (5)
    • S-SQUARE 90 (1)
    • T-TRIANGLE 60 (9)
    • V-DIAMOND/RHOMBIC 35 (9)
    • W-TRIGON 80 (2)
    Insert IC Size
    Insert IC Size
    • 6.351 mm(10)
    • 9.525 mm(28)
    • 12.701 mm(30)
    Insert IC Size MintoInsert IC Size Max
    Insert IC Size
    Insert IC Size
    • 0.25 in(10)
    • 0.375 in(28)
    • 0.5 in(30)
    Insert IC Size MintoInsert IC Size Max
    Cutting Edge Length
    Cutting Edge Length
    • 6.45 mm(2)
    • 7.75 mm(3)
    • 8.675 mm(2)
    • 9.675 mm(9)
    • 11.0 mm(5)
    • 11.625 mm(5)
    • 12.701 mm(1)
    • 12.9 mm(13)
    • 15.5 mm(10)
    • 16.5 mm(4)
    • 16.6 mm(9)
    Cutting Edge Length MintoCutting Edge Length Max
    Cutting Edge Length
    Cutting Edge Length
    • 0.254 in(2)
    • 0.305 in(3)
    • 0.342 in(2)
    • 0.381 in(9)
    • 0.433 in(5)
    • 0.458 in(5)
    • 0.5 in(1)
    • 0.508 in(13)
    • 0.61 in(10)
    • 0.65 in(4)
    • 0.654 in(9)
    Cutting Edge Length MintoCutting Edge Length Max
    Chip Breaker CBMD
    Chip Breaker CBMD
    • EMT (1)
    Cutting Tool Material
    Cutting Tool Material
    • B H (12)
    • B L (42)
    • H W (14)
    Tolerance Class
    Tolerance Class
    • G (62)
    • M (6)
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