The Pentagon End Mill Sharpener MR-X1 is a high precision tool grinding machine designed to sharpen and re-sharpen end mills with a diameter ranging from 4-14mm. It is manufactured by Pentagon Machines and Tools in Pune, India, using high-quality materials and advanced technology to ensure durability and accuracy. The MR-X1 features a compact design, easy to operate, and can grind the end mill with 2, 3, 4, 6, and 8 flutes. It comes with a diamond grinding wheel that ensures precise grinding and can also sharpen the blade of other tools such as drills and reamers.