Abstract: A segmented cutting type tipped saw blade includes a first ridge tip, a second ridge tip, a first end tip, and a second end tip. A first end of the first end tip, a second end of the second end tip, a tip end of the first ridge tip, and a tip end of the second ridge tip project radially outward. A top bevel surface extending from the first end and a top bevel surface extending from the second end, a first bevel surface and a second bevel surface extending from the tip end of the first ridge tip and a first bevel surface and a second bevel surface extending from the tip end of the second ridge tip each have a top bevel angle of greater than or equal to 3° and less than or equal to 10°.

Abstract: A segmented cutting type tipped saw blade includes a first ridge tip, a second ridge tip, a first end tip, and a second end tip. A first end of the first end tip, a second end of the second end tip, a tip end of the first ridge tip, and a tip end of the second ridge tip project radially outward. A top bevel surface extending from the first end and a top bevel surface extending from the second end, a first bevel surface and a second bevel surface extending from the tip end of the first ridge tip and a first bevel surface and a second bevel surface extending from the tip end of the second ridge tip each have a top bevel angle of greater than or equal to 3° and less than or equal to 10°.

Abstract: There is provided a fluid supply mechanism that, when a circular saw blade having a thick boss type base is used, can achieve lubrication and/or cooling of the circular saw blade by performing excellent mist supply. The fluid supply mechanism includes a sleeve 24 with a required length that is attached to a rotary shaft 22, a required number of doughnut-like shims 26 attached to the sleeve 24 and a rotary tool 10 which is attached to the sleeve 24 and is clamped and fixed by the shims 26 from both sides. A fluid is transferred by pressure from gutter-like passages 30 formed on an inner periphery of the sleeve 24 via through holes 32 formed in the sleeve 24 in the radial direction, the fluid is transferred by pressure to passages 34 provided on inner peripheral faces of the shims 26 and gutters 38 formed to extend in the radial direction on both sides or one sides of the shims 26, and the fluid is supplied to the rotary tool 10 to lubricate and/or cool the rotary tool 10 during machining a work.