Mechanical control shock-absorbent anti-recoil mechanism intended for various fields such as industrial and civil constructions, machine building industry, robotics et cetera, its purpose being to protect against the impact forces, recoil forces or vibrations. Preferably, the protrusions on the top edge protrude toward the interior of the lacrosse head and the protrusions on the bottom edge protrude away from the interior of the lacrosse head. Crushing devices such as mills, and crushers may utilize embodiments of the crushing body. The threaded retainer member extends through the blade mounting hole and operatively mating with the shaft bore, and the threaded retainer member further includes a retainer edge at a distal end thereof. The power management circuit enables power to the processing sub-system in response to a power-up control signal.