SuperCut Premium Bimetal Bandsaw Blades are a superior blade with high alloy, high speed M2 steel teeth and a spring steel back to provide flexibility and toughness in the blade. Bimetal blades will give lower cost per cut on tough sawing jobs. Bimetal blades are welded by an electron beam under high vacuum to attach the strip of high speed M2 steel to the spring steel back. The teeth are then milled or ground into the M2 steel.
SuperCut Premium Bimetal Blades will cut a variety of materials, including wood, plastics, soft metals, standard steel products, and hard to cut metals such as stainless steel. Bimetal Blades have a higher initial cost than Carbon Tool Steel Blades, but they will generally outlast Carbon Tool Steel Blades by approximately 10 times, so the cost per cut is considerably less. Structural shapes should be cut at a blade speed of 350 fpm (feet per minute) wet, 200-250 fpm dry. When cutting solids, blade speeds should be 300 fpm or less wet, 200 fpm or less dry.
NOTE: all cutting should follow the simple rule of no less than 2 teeth in contact with the cut at all times, while not allowing more than approximately 10 teeth to contact the cut. Any fewer than 2 teeth in contact can allow the material to drop into the gullet of the blade, causing teeth to shear off. Allowing more than approximately 10 teeth to contact the cut can cause the teeth to not remove the waste effectively and can cause binding in the cut and also damage the teeth and set.
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After 40 years in manufacturing I recently started a new business fabricating farm equipment. I started using Super Cut Bi-metal blades because they fit the need and we're easy to get. After using them for several months I am satisfied with their quality as well as fit for use and ease to replace.
I have been presently surprised and will continue using them for the foreseeable future.