Koch for 8mm lathe 6 jaw chuck. Koch is very high quality and is the Number 1 company in germany for the best chucks. Check this chuck on concentricity, in very good order. The Diameter / Ø is about 55 mm. The groove / slot is about 2mm for holding fixture on headstock. Please also note small print. International buyers (only outside EU). What I meant by. What I mean by. Diameter / Ø , please see picture. The item “Koch 8mm lathe 6 jaw chuck Ø 55 mm, watchmakers tool Bergeon, Boley” is in sale since Thursday, June 16, 2016. This item is in the category “Jewelry & Watches\Watches, Parts & Accessories\Parts, Tools & Guides\Tools & Repair Kits”. The seller is “volareconme” and is located in Lindenberg. This item can be shipped worldwide.

• Brand: Koch
• Type of Tool: Chuck
• Model: 6 jaw chuck
• Country//Region of Manufacture: Germany