Haven't had a chance to use this tool yet. I bought this because none of the sets I could find included the size 1/2". To be honest I chose this one because it was 1 of 3 I could find and it was the cheapest.It seems very well made and I know the brand name.It feels comfortable in my hand and when I test it in fake use on the old switchboards I have around the house it seems very durable and to be well made.