Made from hardened steel these are ideal for any hobby application where you need an accurate thread.
Dimensions: M2 x 0.4
2 x Thread Taps
for this price- not woth to start any discussion, you get to of them, workt very well and you have 1 in spare, look out for other dimensions as they are very cheap and you can use the rest of your shipping weigtGood tools, cheap and works perfect. Recommended product.These look to be good quality , I really can't say as I havent used them yet.