Sherline 3 Jaw Scroll Chuck for Watchmakers Lathe. Marked: Sherline Product Inc. With 8mm WW style screw in collet stem. Scroll Chuck has 3/4-16 thread center for mounting on Sherline lathes but with the screw in 8mm WW collet stem it will also fit regular 8mm watchmakers lathes. Scroll action works smoothly. The free listing tool. The item “Sherline 3 Jaw Scroll Chuck for Watchmakers Lathe, 8mm” is in sale since Sunday, May 01, 2016. This item is in the category “Jewelry & Watches\Watches\Parts, Tools & Guides\Tools & Repair Kits”. The seller is “btlgrd” and is located in Alpharetta, Georgia. This item can be shipped worldwide.