Radiator Lockshield Valve Handle

ever had a problem when your main radiator thermostat doesn't work, or you need to tweak the flow into your radiator with the lockshield valve? There lockshield valve have a small white plastic cap on it, but no handle. I've often had to use a pair of pliers to turn it in the pass but it's absolute pain and my bed is blocking me from reaching my radiator so it's even harder. This valve has a slot that accommodate a brass valve with rectangular tip of 7mm (L) x 4mm (W), and up to 8mm high. If you have other sizes and would like a custome shape then let me know.