Carbon fiber reinforced polymer (CFRP) composites exhibit anisotropic properties, high hardness, and low thermal conductivity, which often result in surface defects such as burrs, chipping, and delamination after milling. Many researchers have focused on high-speed dry cutting and milling methods to investigate the cutting force and surface quality of as-machined CFRP. The cutting velocities studied have typically ranged from 100 to 200 m/min. The work aims to employ super-hard diamond-coated tools to investigate whether higher cutting velocities, ranging from 260 to 380 m/min, can effectively enhance the surface quality of CFRP and also comprehensively analyze the relationship between cutting parameters, cutting force, and workpiece surface quality.