Oster Heavy-Duty Dog Grooming Clippers - Golden A5 heavy-duty single-speed clipper with detachable blades gives you 45 watts of power. Uses size 10 blades, the motor runs up to 30 degrees cooler than previous models and run smoothly and quietly. It works great for both general and precise clipping. The detachable blade system makes for quick, easy blade changes and increased versatility.