A device includes a resilient member having a first end for blocking an access hole and a second end for attachment to a support surface, an opening extending through the resilient member and located between the first and second ends, and a bolt connection location positioned at the second end of the resilient member. Furthermore, the tools resulting from the improved compositions and processes of fabrication can exhibit better distribution and homogeneity of chemical constituents, greater strength, andor increased durability. The operation target object is rotated in the rotation direction. Some keys in a particular key layout are overlying at least two of the plurality of contacts, and such keys actuate only one of the underlying contacts. Activation of a selected retroreflector results in light of a corresponding wavelength being coupled back to the gain medium through the laser mode matching element and the first, second and third plates. A ratchet strap have a series of locking teeth and is formed integrally with the housing and extends outwardly therefrom and has sufficient rigidity to assume a generally circular configuration with a curved article contact surface of the housing to facilitate attaching the device around the article.