Bulldog PowerLite Treaded Newcastle Draining Tool 5NDPLR. The Bulldog PowerLite Newcastle Draining Tool is used for digging deep holes and narrow trenches, cable channels, pipe channels, drain channels and post holes. Bend strength exceeds the BS3388 Standard. The Bulldog PowerLite Newcastle Draining Tool has a solid fibreglass shaft, manufactured from continuous parallel fibres, is fire resistant, non water absorbent and has insulating properties.