... holds the brittle tungsten grains together and makes the alloys ductile and easy to machine.Applications: 1, Radiation shield, collimator, nuclear shielding, beamstop, PET ... . vibration damping and dynamic balancing. Tungsten sinker bar, Tungsten bucking bar, Tungsten boring bar, Tungsten Sinkers, tungsten alloy counterweights for golf and tungsten alloy dart parts spheres, cubes, and ...