Drilling
For machining ring gear mounting holes

MDSS Series - High-efficiency drills
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SumiReamer SSR Type
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Turning
Roughing
Grades for cast iron turning
Finishing
For ductile cast iron turning

Coated Sumiboron BNC500
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Reaming
Internal diameter finishing

SumiReamer SR Series
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Spherical cutters
Supported sizes: on request (available sizes: Ø 35–64 mm)
Flat insert type
Suitable for machining of small differential cases.
Tangential insert type
Tangential mounting increases insert rigidity, ideal for high-feed and high-efficiency machining.
Required tolerance range for spherical surface is 90 μm or below
Face cutter
Supported sizes: on request (available sizes: Ø 48–100 mm)
Special cutter for dedicated machines achieves outstanding mass production performance. High-precision cutter body and ground type insert support stringent machining accuracy. Machining accuracy. Excellent economic efficiency due to indexable inserts.