Patent ID: 7363843

Claim:
A cutting tool having a securing device, the cutting tool including a blade and a motor including a driving shaft device, the securing device clamping the blade and mounted to the driving shaft device, the motor driving the driving shaft device to rotate the blade simultaneously with the securing device, the securing device comprising: a clamp assembly mounted to the driving shaft device and including two clamping members between which the blade is clamped; a bolt securing and pressing the clamp assembly to clamp the blade, the bolt extending into the clamp assembly and screwed into the driving shaft device; and a driving member configured for rotating the bolt, the driving member including a body fixed on a head of the bolt and a handle having a fixed end pivotally coupled to the body such that the distance between the head of the bolt and a movable end of the handle changes when the handle pivots with regard to the body; a resistant slice having a first side shaped to a concave curvature and a second side shaped to a convex curvature, the bolt through the resistant slice, and the head of the bolt pressing the second side so that a periphery of the first side presses against the clamp assembly; and a pressing member having a basic board and a skirt extending from a periphery of the basic board, the bolt through the pressing member, the periphery of the first side of the resistant slice enclosed by the skirt and pressing the basic board.