I have a small sealey or clarke or similar set that cost about £15 and has M4-M12 taps and dies plus the holders and a thread pitch gauge. I've had it for 5+ years and never had an issue and the only stuff I've had to buy to add to it are a couple of BSP taps and M12x1.25 which is the peugeot wheel bolt thread as standard M12 is M12x1.5
I wouldn't go for a big set as you are highly unlikely to use 90% of it. If I were gonna buy another set it would be a relatively limited set but one that came with primary, secondary and butt taps and the appropriately sized tap drill.
If you are just tapping out a hole that has previously had a thread in it then cheap taps are fine, people f*ck taps by trying to force them to cut, turn them forward a quarter turn tops and then turn it back by an 8th. Also WD40 is a tappers friend.
I wouldn't go for a big set as you are highly unlikely to use 90% of it. If I were gonna buy another set it would be a relatively limited set but one that came with primary, secondary and butt taps and the appropriately sized tap drill.
If you are just tapping out a hole that has previously had a thread in it then cheap taps are fine, people f*ck taps by trying to force them to cut, turn them forward a quarter turn tops and then turn it back by an 8th. Also WD40 is a tappers friend.