SPEED TIGER Carbide Square End Mill - ISE 4 Flute (5 Piece Set: 1 /8 inch, 1 /4 inch, 3 /16 inch, 5 /16 inch, 3 /8 inch) - for Alloy or Hardened Steel, Metal & More - TiSiN Coated - Mill Bits Sets for DIYers & Professionals

Features

• TiSiN COATING - nano-composite coating material with extraordinary heat resistance (1100) and hardness (HV 3600) doubles efficiency in high-speed, hardened steel cutting, offering longer life, reliability, and cost savings. Suitable for dry machining, it ensures higher tolerance and smoother finishes.
• APPLICATION - Our carbide tools are highly effective at machining various types of steel such as Carbon Steels (~HB225), Alloy Steels (HB225~325), Pre-hardened Steels (up to HRC45), Hardened Steels (HRC40~45), and Cast Iron.
• HIGH-PERFORMANCE MATERIAL - This end mill is made from micrograin carbide, which gives it exceptional toughness, durability, and machinability. It performs brilliantly and is an excellent value for its price.
• FINE WORKMANSHIP - Our products deliver outstanding high accuracy with an error of -0.02mm, empowering users to achieve professional cutting quality effortlessly.
• DEDICATED SUPPORT - Please don't hesitate to contact us on Amazon if you need the Cutting Condition Data. We want to ensure you receive the best product that meets your requirements.