BXA10 / BXA20 / BR35F

BXA10 / BXA20 / BR35F

Coated CBN grade for hardened steel

Coated CBN series for a wide range of hard part turning.
The most suitable grade can be selected for your application requirements.

BXA10 / BXA20 / BR35F

Applications & Features

External turningInternal turning

1. Application area

2. Grade properties

3. WavyJoint

New brazing technology for increased machining efficiency
  • A maximum depth of cut up to 0.8 mm.
    Reduces the number of passes to increase productivity.
  • Innovative WavyJoint brazing technology
    Prevents the CBN tips from debrazing, eliminating abrupt insert fractures during demanding dry machining, while securing stable and predictable hard turning operations.

4. Hardbreakder Series

  • HS chipbreaker
    Optimized chipbreaker design for excellent chip control during hard turning at aggressive conditions
  • HP chipbreaker
    Designed for finish machining of hardened parts with close tolerances
  • HF and HM chipbreakers
    Suited for hard turning applications requiring great D.O.C. such as carburized layer removal

5. New CBN inserts for general turning

  • GNGA insert with 70° corner angle
  • FNGA insert with 45° corner angle
    • Smaller corner angle provides the insert with greater clearance between the insert flank and workpiece surface, allowing better chip flow and evacuation.
    • Enables greater D.O.C. in face turning applications in which the insert is pulled outward (fed away from the workpiece center).
  • YNGA insert with 25° corner angle
    • Allows undercutting, V grooving, and other applications that are not possible with traditional V inserts.

High versatility
  • Existing ISO turning toolholder can be used for these inserts.
    • For GNGA insert: Use the holder for CNxx1204 insert
    • For FNGA insert: Use the holder for DNxx1504 insert
    • For YNGA insert: Use the holder for VNxx1604 insert
  • No offsets needed compared to ISO inserts, due to same geometry of cutting edge position.
  • Double sided insert with 2 cutting edges.

6. MiniForce-Turn Double-sided positive insert with CBN tips

MiniForce-Turn now offers WavyJoint CBN inserts that provide additional strength and security in aggressive cutting conditions.

WXGQ0403… insert

Double-sided positive inserts

6-edged insert with dovetail design



  • First choice for continuous to light interrupted cuts of hardened steel turning
  • For cutting speed = 230 m/min or less


  • Versatile grade from continuous to heavy interrupted cuts
  • For cutting speed = 180 m/min or less


  • First choice for heavy interrupted cuts
  • For cutting speed = 150 m/min or less

Practical examples

Part: Gear

SCM420 / 18CrMo4 (62HRC)



Grade: BXA10
Cutting conditions: Vc = 100 (m/min)
f = 0.05 (mm/rev)
ap = 0.15 (mm)
Coolant: Dry
Part: CVT

SCr420 / 20Cr4 (59HRC)



Grade: BXA20
Cutting conditions: Vc = 170 (m/min)
f = 0.3 (mm/rev)
ap = 0.1 (mm)
Coolant: Wet
Part: Gear

SCM420 / 18CrMo4 (60HRC)





Cutting conditions: Vc = 70 (m/min)
f = 0.05 (mm/rev)
ap = 0.15 (mm)
Coolant: Dry

Standard cutting conditions

ISO Grade Workpiece condition Cutting speed
Vc (m/min)
Depth of cut
ap (mm)
f (mm/rev)
BXA10 Continuous 100 – 230 0.05 – 0.5 0.05 – 0.3
Light interrupted 100 – 230 0.05 – 0.3 0.05 – 0.2
BXA20 Continuous 60 – 180 0.05 – 0.5 0.05 – 0.3
Interrupted 60 – 180 0.05 – 0.3 0.05 – 0.2
BR35F Heavy interrupted 50 – 150 0.05 – 0.3 0.05 – 0.2

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