The IRWIN/HANSON 41 pc SAE Tap and Die Set offers comprehensive SAE coverage, accommodating various threading and re-threading tasks with ease. The set features precision-machined components designed to create clean, accurate threads while minimizing imperfections and cross-threading. An auto-lock feature secures taps and dies during operation, enhancing user safety. The set is housed in a compact carrying case that organizes and keeps all 41 pieces together for easy transport. Ergonomic handles are included, providing improved grip and control during manual threading tasks.