The Micro Chisel set has a hardened tool steel blades with a wedge-shaped tips. The shape of the blade offer numerous possibilities for cutting and scrapping. The blade is attached to an ergonomically designed plastic handle. Length: 5 inches Blades width:2.0 mm / 2.5 mm / 3.0 mm Possible Uses: removing pin marks, making grooved lines, trimming flash from edges of small pieces, trimming stretched sprue, etching a louvre into plastic, etc. Only limited by your imagination.