I don’t know much about these things, so please ask any questions. These are 8mm collets, and the sizes included are as follows. The brand of these collets is Peerless. The item “Watchmakers lathe collets” is in sale since Saturday, February 18, 2017. This item is in the category “Jewelry & Watches\Watches, Parts & Accessories\Parts, Tools & Guides\Tools & Repair Kits”. The seller is “greatestateitems” and is located in Lutz, Florida. This item can be shipped to United States.

• Type of Tool: Lathe