ABS Sensor - What tool to remove from knuckle???

[jmoore16]

What tool do I use to remove the front ABS sensors from the knuckle? It looks like I need a socket that fits a torx bit but I don't know what size and I am going broke trying to buy sockets that don't fit. I bought every one that Sears Hardware sells and still no luck...

Help!

 

[Big Jay]

I just use a 1/4" 6point socket. Some liquid wrench is a must if your bolts are rusty.