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This M21 x 1mm tap and die set is perfect for anyone who needs to cut or repair metric threads.

The tap measures 109mm long and is designed for creating internal threads, while the die has a 45mm outer diameter and 10mm height for external threading.
Both are made from high-speed steel (HSS) which means they'll stay sharp through plenty of use and can handle tougher materials.

The 1mm pitch is pretty standard for M21 threads, and the right-hand direction works for most common applications.

Whether you're working on automotive projects, machinery repair, or any kind of fabrication work, having matching tap and die sets like this makes thread repair so much easier.

The quality is solid for the price - they cut clean threads without chattering or breaking if you use them properly with cutting oil.

Definitely a handy set to have in your toolbox when you encounter M21 threaded components that need fixing or when you're creating new threaded connections.

Much better than buying tap and die separately, and having both means you're prepared for any threading task that comes up.
5 out of 5