The HFS(R) TYPE B V-BLOCK & C CLAMP SET are applied for layout work in the toolroom and has the capability of holding square or round workpieces with greater accuracy.The set includes 2 pairs:TYPE B V-BLOCK, 2-3/4IN(Length),1-3/4IN(Width), 1-1/2IN(Height).C CLAMP(6-32mm).They are made of high-quality steel.Also, All sides are ground square and parallel to each other.Accurate enough to be used in layouts and surface platework.