First I received the standard 13 pcs. Set from 1/16" to 1/4", but I ordered a 60 hp set from 3/64" to 1/8". Revain returned the money and I was told I could keep the set. Second, the first clue to a well-made drill is its initial ability to cut very well. The 3/32" socket drill I chose was only comparable to a 5 year old, heavily used drill from another manufacturer. The drill DOES NOT run when initiating the hole. This drill worked. This is obviously a poorly sharpened drill.