What spanners/grips you use for chrome rad valves

[lame plumber]

you could try using the correct sized spanner!

 

[Best]

you could try using the correct sized spanner!

But you can never really get any spanner tight enough. Especially on chrome or some designs of nuts with rounded edges. And soft brass will crush a little on edges that pressure is applied to if nut is tight. Brass tap spindles are good example of this.
I know I am a snob but be like me and get into the modern age with a Knipex self constantly tightening smooth jaw spanner.

 

[lame plumber]

But you can never really get any spanner tight enough. Especially on chrome or some designs of nuts with rounded edges. And soft brass will crush a little on edges that pressure is applied to if nut is tight. Brass tap spindles are good example of this.
I know I am a snob but be like me and get into the modern age with a Knipex self constantly tightening smooth jaw spanner.

I am more a technician and engineer, I hate adjustables etc, they slip end of, hence why I use spanners where possible. not everything modern is better imho

 

[Best]

I am more a technician and engineer, I hate adjustables etc, they slip end of, hence why I use spanners where possible. not everything modern is better imho

No doubt you are right, - I find adjustables are just a general do all spanner with which I have to make sure they are fully tight on the nut before using them. But they are fine on ordinary fittings. With some oddball fittings the nuts are not standard and a set of open end spanners won't cover it. I do have a set of Teng spanners which are nice quality and used for oil boiler work mainly.
The Knipex spanner just doesn't move on the fittings/nuts and shouldn't slip. That means it also shouldn't slide to the side of a fitting/nut and angle and slip off sideways. It also lets you 'grip' a fitting to hold into position like set of grips can do. And you can manually ratchet it.
Early days with the Knipex for me, but I find I always reach for it with some fittings and tap works. Trouble is it is yet another expensive tool cramming the tool box and making it heavier.