»Two cherries (Kirschen)« chisels are exclusively hand-forged. This careful hand crafting is the source of the high quality and long service life of »two cherries (Kirschen)« tools. Electronic monitoring during the forging and hardening process ensures that these high standards are consistently maintained. Uniformly hardened over their entire working length. At 61 HRC their hardness is well above DIN (German standards Institute) giving them outstanding ability to hold an edge. The cutting edges are ground with a standard angle of approximately 25°. the angle of the cutting edge can be adapted to the wood you work with (hard or soft). before the first use the cutting edge should be honed to a sharp working edge.