More Information. For speed, straightness of cut, long life and safety, these bi-metal, portable, power hack saw blades are the best choice for the REED Saw It® and heavy-duty power hack saws made by Widder®, Fein®, and Spitznas®. The extra blade depth (1 3/8”) and the Matrix® high-speed steel (HSS) cutting edge allow a straighter cut.
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