Dasco Pro 88 Punch and Chisel Kit, High Carbon Steel, 12-PieceThe cold chisels feature the targethead, design to reduce spalling & mushrooming. Pin punches are used to remove a pin or key. Prick punches are used to mark and scribe work pieces. Center punches are used for making accurate hole starting easier. Cold chisels used for cutting and shaping metal that is softer than the cutting edge. Pin punches are used to remove a pin or key Prick punches are used to mark and scribe work pieces Center punches are used