Expert Quality, 28mm ½” square drive 12 point deep socket manufactured from chrome vanadium steel hardened, tempered, chrome plated and polished for corrosion protection. Chamfered end allows positive nut location. Ball-retaining groove on each face of the square drive, which ensures a positive fit with accessories. Overall length 80mm.
These are used within the Water Industry for fitting and removal of the Red (No Flow) Boundary caps