pressure check vailliant boilers

[pauls]

what size screwdriver do you use to check the inlet pressure on the valliant boiler. the gas valve is so close to the side caseing its a squeeze to get a driver in i cant seem to find anything smaller than 75mm

 

[SafeGasInstall]

http://www.tooled-up.com/ManProduct.asp?PID=131836

i use this ,it has a small round bit holder !it does the job for me!

trustful web to buy tools !