New Snap-on 25 piece screw extractor set. This set is sealed and has a nice hardened case. Center punch a hole in the broken fastener if needed. Select correct drill size from chart. Drill hole in center of fastener. Lightly tap extractor into broken fastener. Using a socket, ratchet wrench, adjustable wrench or open-end wrench, turn the extractor counterclockwise while applying light pressure. The shoulder on the extractor prevents extractor from entering too deeply and expanding screw or bolt. They have tremendous gripping power with just a light tap from your hammer. Every mechanic needs a set of these. I’ve had my set for many years. I take care of them and they take care of me. American made in sizes 1/8 thru 7/8. And yes, they will extract metric fasteners. These have saved our day over and over again! Boxed weight rounds up to 5 pounds. Take a look at my other tools by clicking on my store tab or “see other items”. Please be kind and leave only positive 5 star feedback and I will return in kind. Message any questions and thank you for looking! The item “Snap-on 25 Piece Multi-Spline Screw Extractor Set” is in sale since Friday, March 5, 2021. This item is in the category “Business & Industrial\Light Equipment & Tools\Hand Tools\Other Hand Tools”. The seller is “toolin22″ and is located in Fair Play, South Carolina. This item can be shipped to United States.