An improved on-chip storage memory and method for storing variable data bits, the memory including an on-chip storage memory system for storing variable data bits that has a memory for storing data bits, a wrapper for converting the memory into a first-in first-out memory, and a controller for performing operations on the memory. An orifice, which through the expandable cage section decreases in diameter with increased distance along the central axis of the body away from the fixed cage section, is provided through the body. The respective inner surfaces of the inside noise dampener disc member and the outside noise dampener disc member have radially spaced annular grooves that removably receive respective O-rings which dampen the noise produced during operation of the circular saw. Filter inlet and outlet ports preferably slide onto and off of cooperating tubes or ports in the bracket modules, for installation and removal of the filters ontofrom the modules without tools or threaded connections. 195 over a range of Reynolds Number from about 135,000 to about 180,000 and at a spin rate of about 3,000 rpm.