Abstract: A clamp for releasably securing a circular saw blade with a central opening to a support having an opening. The clamp includes a spindle provided with a body for engaging the saw blade within its opening and a shank for extending through the support opening and receiving a nut for drawing the spindle body rearwardly toward the support whereby the blade is rotatably retained thereagainst. A plurality of levers having proximate and distal ends extend radially outwardly from the spindle body and are pivotally attached thereto at fulcrums between the lever ends. A spring engages the spindle body and is connected to the lever proximate ends for biasing them forwardly whereby the lever distal ends are biased rearwardly and clamp the saw blade against the support. A quick-release feature is provided for unclamping the saw blade.