No extra tools needed to change dies. Die sets are interchangeable! Check on the chart above. Interchangeable with many other die sets selections. Die ( HT-2C ): DIN 0.5-1, 1.5-2.5, 4-6mm. Die ( HT-2E2 ): DIN 0.5, 0.75, 1.0, 1.5, 2.5, 4, 6, 10, 16 mm.