General description Our 20 Pcs Stainless Steel Tungsten Steel Thread Taps and Dies Set is designed to meet all your tapping needs with precision and durability. This comprehensive set includes a variety of taps and dies, all neatly organized in a portable metal box for easy access and convenience. Technical specifications Includes 12 taps and dies Models: M3*0.5mm, M4*0.7mm, M5*0.8mm, M6*1.0mm, M7*1.0mm, M8*1.25mm, M9*1.25mm, M10*1.5mm, M12*1.75mm Material: Precision cast thickened carbide Heat treated and hardened for strength and durability Installation Ideal for drilling and tightening in automotive and machine repairs Suitable for home installation, decoration, railway bridge construction, factory equipment installation Usage Tools for repairing threads Tap reamer repair nut and screw Anti-slip handle for stable and effortless use Other information High precision with fine grinding and precise thread Round die designed with a taper-lock top fixing hole for strong locking force