A working man's knife

In the United States for 5 decades the standard knife of the working man was of two basic types. One either carries a multi tool which is similar to a Boy Scout knife in concept but also includes a reasonably sturdy folding plier such as the Leatherman, OR, one carries a folding knife of the Buck 110 type (or a clone of).

Some working men have one of each type
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The Buck 110 has earned a place as a classic. They retail for about $35 on Amazon.com The 3 3/4" stainless steel blade is that of a small sheath knife and it can be honed to razor sharpness. When opened the blade locks into the open position so that it will not slam shut on the owners fingers when doing heavy cutting or slicing tasks. The handle to which the blade folds is made of Rosewood with brass bolsters. The clip point blade allows fine detail cutting while the 0.12" blade thickness allows some force to be safely applied when levering. There have been literally millions of them sold. Although initially intended for outdoorsmen who wished to have a reasonable hunting and camp knife without wearing a sheath knife, the design gained immediate acceptance amongst the construction tradesmen as well as other industries in which a good knife is often an important accessory to the workman's kit or tool belt. You will find these knives in a belt pouch or a pocket of construction workers, mechanics, farmers and outdoors workers across the nation. In addition to the Buck brand name stamping on the ricasso of the blade there is also a date code which allows collectors to identify the year of manufacture. Some folks care about that, even though a Buck 110 made in 1963 is otherwise identical to one made in 2018. The complaints about the 110 design are only a few, but they do exist.

A) Learning to open the knife one handed requires a fair amount of practice and a blade pivot mechanism that has been opened and closed enough times so that it is no longer stiff. Once the technique is mastered though any Buck 110 requires only a soft flick of the wrist to open and lock the blade into position.
B) The knife is not light. It ways 7.2 ounces, almost half a pound. The handle is 0.6" thick.
C) The locking mechanism can wear and fail with time. It usually takes about 5 years of daily use 3 or 4 times a day, but eventually the edges of the locking notch can become rounded enough to fail under pressure along the spine of the blade. If your Buck 110 is razor sharp this can result in sudden pain and blood (and or finger) loss.
D) The knife's edge can be used for shaving insulation off wires, and if a copper wire is thin the knife can cut through it. However, the knife was designed for slicing softer materials and cutting wires or cables will place nicks and dull spots on the blade's edge and resharpening is probably needed after a day spent cutting phone wires or picture hanging wire.
E) There is no way to disassemble the knife for thorough cleaning. Usually however a spray of hot water can be used to flush debris out of the channels.