This end mill is specifically designed for clean and flawless cutting on both the top and bottom surfaces of your material. The unique compression design prevents chip-out and splintering, resulting in a smooth finish on laminates, veneers, and other challenging materials. With a hardness rating of HRC55, this solid carbide tool ensures exceptional durability and long-lasting performance. *Chatter resistant design for superior surface finishes.*Sharp cutting reasonable matched with high strength of cutter.*Arc relief angle makes tool better wear-resistance.*High strength and hardness.*Durable in use.*Application for wood, MDF, HDF, solid wood, epoxy board, PVC, plastic. NAME EXPLANATION: D5 - Diameter of the cutting part of the bit CL - Cutting Lenght/Depth S1/2 - Shank diameter. For example 1/2 inch or 6 for 6mm 70L - Overall Length 2F - 2 Flutes. 2 cutting blades.