PURPOSE: To make a body compact in size and also into being long-lived so as to be conformable even to a large diametral continuous thread stud bolt as well as to reduce the occurrence of burr, in this cutting edge of a bolt cutter to be used as a cutting tool of this continuous thread stud bolt or the like whose shank is fully threaded.
CONSTITUTION: This is a cutting edge for a bolt cutter where each position of both opposed sides 19 and 20, becoming each threaded surface of two cutting blades 1a and 1b are more lowered than a central position 23 of an internal thread 2, and likewise, a notch 3 is installed so as to make the height of a thread ridge of an incomplete thread part 29 of an edge end of the internal thread becoming a cutting edge 28a cone to be lower than that of an adjacent complete thread ridge, and further, a notched groove 4 is installed in a specified position of a cutting blade side face.
MURAKAMI NOBUYUKI
SASAKI SHUNEI
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