How to Break In a Blade   Use the appropriate band speed for the material to be cut (see bi-metal band speed chart). Reduce the feed rate/force control on the saw to achieve a cutting rate approximately 20% to 50% of the normal cutting rate.  Mild steels require a larger reduction in cutting rate than more difficult to machine materials. Begin the first cut at the reduced rate (A), making sure that the teeth are forming a chip.  Once the blade fully enters the workpiece, the feed rate can be slightly increased (B). Make gradual increases in feed rate/force over several cuts until the normal cutting rate is established (cutting a total of 60 to 118 inches2 / 150 to 300 cm2) (C). Note: During break-in, slight adjustments to band speed may be made in the event of excessive noise or vibration.  Once the blade is broken in, the recommended band speed should be used.