About Xuanfeng Factory :We are a professional factory with 15 years of production history. Our factory philosophy is to provide our customers with: satisfactory quality of use, high work efficiency, and perfect after- s service. About that product: Cutting Diameter: 1/4 Cutting Length: 1 Shank Diameter: 1/4 Overall Length: 2 1/2 Flutes: 2 UPcut end mills shear in a downward direction causing the uppermost layer of the material to be pressed down against the material just below it. This motion leaves a perfectly clean top surface edge. A concentration of wood chips in the work path will occur. Hose away excess wood chips to prevent bit breakage. Pros: Prevents top surface edge chipping and tear-away. Cons: Less than optimal chip removal when dadoing or plunging. (Choose an up cut spiral bit for standard more efficient milling.) For use in CNC milling and carving machines. nACo coating provides longevity and produces cutting results of the highest quality. use for cutting: Laminate, Melamine Particle Board,MDF,Veneered Plywood,Wood for use on CNC, table mount and handheld routers. up to 2.5X longer life compared to uncoated bits Nano blue coating enables the tools cutting edge to retain crucial sharpness and lubricity. This provides longevity and produces cutting results of the highest quality. Coating prevents high heat and oxidation which is detrimental to cutting tool performance. For Customers: Quality assurance. if there are any problem with the item please contact us at first, we will offer new item exchange or refund policy.