Hand tap set Design: 3-piece set, consisting of roughing tap with point form A (6–8 threads), second tap with point form D (3.5–5 threads) and finish tap with point form C (2–3 threads). Application: For regular metric threads according to DIN 13. Particularly suitable for high strength materials up to 1200 N/mm² in strength and rust-free and acid-resistant steels.