What is the difference between a Tuf-Lite series “B” blade vs. the “BH” blade?
Prior to mid 1976, the Tuf-Lite “B” blades & “C” blades were just that B & C. After extensive field testing, Hudson Products saw the need to strengthen certain blades with additional cloth to the leading edge side of the blade; therefore, the letter “H” was added to the part number indicating a slightly heavier blade. NOTE: This does not apply to the following blade sizes: T-6B, T-7B, T-8b, T-9B, T-10B, T-16B, T-18B, T-20B & T-22B “CH” should apply to all the “C” blades.