The 0.4330 CHK Reamer from Field Tool Supply is a high-speed steel (HS) tool designed for precision reaming applications. With a diameter of 0.4330 inches, it is perfect for creating smooth, accurate holes in various materials. The straight flute design enhances chip removal efficiency, making it suitable for both manual and CNC machining. Its stainless steel finish provides excellent corrosion resistance, ensuring longevity and reliability in demanding environments. This reamer meets industry standards, making it a trusted choice for professionals in metalworking and fabrication.