To provide a segment type saw blade capable of simultaneously attaining excellent free-cutting property and improvement of service life performance when performing cutting for a material to be cut made of a hard-brittle material such as concrete and stone material.
This segment type saw blade 1 is constituted by intermittently forming super abrasive grain layers made of diamond abrasive grains or cBN abrasive grains at an outer peripheral edge part of a circular steel substrate 11. In the saw blade 1, at least two cut-out grooves 14 extended from the radial direction inside to the outside and inclined from a rotating direction front side to a rear side are formed with a prescribed space in the peripheral direction on both right and left side faces of the super abrasive grain layers equally arranged by key grooves 13 at the outer peripheral edge part of the steel substrate 11.
OSHIMA SUSUMU
Yasuo Fukuda
Yasuyuki Sakata