Abstract: A tool for removing bungs and screws comprises a shank adapted for connection to a rotated drive and an enlarged head with transverse axial slots formed therethrough and an axial threaded bore defining a plurality of flutes. Each flute has a first flat axial side with a radial outer edge inclined outwardly toward the shank at an acute angle. The radial edge terminates in a flat relief surface extending at an increased acute angle toward the shank, and terminates in a flat clearance surface extending at a further increased angle. The relief surface terminates in a second flat axial side arranged at at least a 90 degree angle to the first flat side.
Abstract: A condensation proof glass assembly includes a cup of plastic material having an inner wall surface and a bottom wall, and a glass container having a similarly shaped outer wall surface and a bottom wall, snugly projected down into the cup, with the bottom walls spaced apart defining a spill over and condensation reservoir. A plurality of upright grooves in the outer surface of the container define corresponding ridges engaging the cup, with the grooves forming a series of drip channels conducting water to the reservoir.
Abstract: The circular cut-off blade includes an arcuate body of about 90.degree.-180.degree. approximately in length and having parallel sides, and a continuous arcuate enlarged head along one side edge of the body throughout its length, said body and head being of uniform cross section. The opposed side walls of the head and its top surface being transversely concave and hollow ground to define therebetween continuous cutting corners. The leading edge face of the body and head being cut away inwardly and rearwardly to define a clearance angle with said leading edge face defining with said head an arcuate cutting edge. Said body and head after wear of its cutting edge adapted for progressive grinding of its clearance angle leading edge face to provide a progressive series of cutting edges along the length of said blade.