The relationship between feed and speed is one which is essential to the proper functioning of a bandsaw. When you are operating the saw, you need to give it your complete attention. Otherwise, the saw will not perform as intended. The speed of the blade is measured at S.F.P.M. or Surface Foot Per Minute. You need to make sure that this is optimum for the application. The lower the percentage rating of material machineability, the slower the band saw speed should be. The blade selection also has its role to play. If you notice a great deal of cutting noise and vibration, you should decrease your operational speed as the blade life could be in jeopardy. If the cut is being made dry without the use of coolant, you should reduce the cutting speed by as much as 40 to 50 percent.