A plastic canister for storing and shipping drill bits, especially roller cone drill bit, has a pin-holder built into the lid of the canister for ease of field dressing the bit. These compounds can be particularly useful as photosensitizers or sononsensitizers in photodynamic or sonodynamic therapy. Based on measured cost, the desired implementation is chosen for the component by an external controller that is generic to the computer program or by an application program that interfaces with the library or component. The phase lock loop circuit is further arranged to modulate the steering voltage to the VCO with the high frequency component of the modulating signal. The material stored may be a biological material such as an enzyme, the components of a chemical reaction such as reagents for carrying out an assay, or even viable biological cells.