Product Overview: Tungsten Carbide Outer Diameter Groove Cutter – CSMU Series

【Product Features & Why We Recommend It】

• Japanese Original Manufacturer Quality: Manufactured directly by a Japanese original factory with rigorous quality control — recommended for users with high demands on outer diameter groove forming accuracy and tool durability.
• Outer Diameter Groove Dedicated Geometry: Features a forming geometry specifically designed for outer diameter groove applications — recommended for precision forming of external circumferential grooves, circlip grooves, and undercut grooves on shaft components, ensuring slot profile and dimensional accuracy meet fit requirements.
• Tungsten Carbide High-Hardness Capability: Manufactured with tungsten carbide, capable of machining materials up to HRC50 — offering superior wear resistance compared to HSS forming tools, recommended for higher-hardness steel, cast iron, and stainless steel machining applications.
• Multi-Flute Stable Forming: The 4–6 flute configuration evenly distributes cutting load — recommended for precision outer diameter groove forming and finishing operations, effectively improving slot wall surface finish and dimensional consistency.
• Compact Specification Flexible Selection: Available in diameter 4–12mm and flute length 0.5–5mm across a precision thin specification range — recommended for flexible selection based on groove width and shaft diameter dimensions, suitable for outer diameter groove machining needs across various shaft and rotating components.

【Machining Applications & Uses】

• Primary Use: Outer circumferential groove forming milling, circlip groove machining, undercut groove forming, and precision outer diameter groove machining of shaft components.
• Recommended Work Materials:
  • P-Class (Carbon Steel / Alloy Steel): Structural steel, carbon steel, and alloy steel — recommended for hardness below HRC30, delivering stable outer diameter groove forming cutting performance.
  • M-Class (Stainless Steel): SUS304, SUS316, SUS420, and other high-toughness stainless steel and white iron — the tungsten carbide substrate combined with multi-flute design effectively suppresses adhesion and maintains cutting stability.
  • K-Class (Cast Iron): Cast iron and gray iron wear-resistant materials — the tungsten carbide high-hardness capability provides outstanding wear-resistant tool life.
  • N-Class (Non-Ferrous Metals): Aluminum alloys, pure copper, brass, and engineering plastics — softer and adhesion-prone materials where the use of appropriate cutting fluid is recommended to ensure smooth chip evacuation and surface quality during outer diameter groove machining.