US Patent 7475620 Floatable handle having an enclosed chamber

A hand tool comprises a handle having an enclosed chamber defined therein, and the handle including a recess defined in the end thereof; and a hole defined in a second end of the handle and being in communication with the chamber, a bolt seals the hole; and the hole being at a lowest end of the handle; and a shank connected to a first end of the handle; and an end of the shank being fixedly inserted in the recess; the recess being an L-shaped recess and the end of the shank being an L-shaped end; and a fluorescent layer being coated on an outer periphery of the handle. Furthermore in another design, the recess being a T-shaped recess and the end of the shank is a T-shaped end.