Rennsteig 250mm x 70mm Jointing Chisel 385070CFeatures tapered blade for cutting out mortar joints in old work without damaging the face of the brick To remove mortar to tiles Rennsteig chisels are made of hardened chrome vanadium steel Forged, quenched and tempered as a whole to guarantee a good resiliency and long service life Work worn cutting edges are regrindable in short intervals, Ensure water cooling during regrinding process Chisel blades are lacquered to protect against corrosion Shanks