Blasting iron
The blasting iron , also Sprenger , Pitscher , coasters or hand translator , is a tool (iron) from tool steel , that the Steinmetz for the targeted production of edges used and corners on the workpiece. This means that excess material ( bosses ) is only worked off (blown away) in the edge area.
Depending on the application, the sprinkler is available for rough or fine work, and the material to be processed ( granite , limestone , sandstone, etc.) in various designs with cutting edge widths from 30 to 70 mm. Its cutting edge is an obliquely flattened path that is sharp-edged on the high side. The cutting edge angle is 80–90 degrees depending on the application.
In addition to forged explosives with a hardened face, there are also explosives with hard metal inserts . The sprinkler is held in one hand and driven with a hammer . The impact technique and the angle of the tool to the workpiece determine how much of the material is blasted off.