Check the listing for details. Micro Chuck A-MC2 Mini Mandrel Chuck Adapter Rotary Tool 1/8 Shank Foredom. Condition: New. Listed at 19.95 USD. MINI MANDREL - MICRO CHUCK ADAPTER FOR ROTARY HANDPIECE TOOL 0 - 0.90MM / 0 - 0.035" CAPACITY SHANK SIZE 2 STEP - 1/8" & 3/16" HOBBY & JEWELRY - ACCESSORY HOLDER 🟢 Miniature MICRO 4-Jaw Chuck Mandrel adapter, with a holding capacity range of 0 to 0.90mm accessories.🟢 Mandrel shank has two holding diameters (a 1/8" and 3/16" Shank), the main body portion measures 3/16" and the shank end is 1/8" adapter can be held at either diameter. 🟢 Micro Chuck is precision machined out of one piece steel, with a tightening nut. Mandrel is like a miniature pin vise that mounts on rotary tools, hand-pieces like Foredom, Dremel, Grobet, Pfingst to hold Micro Drills, Mini Polishers.🟢 Micro Chuck Adapter is a handy accessory that can be used to hold very small bits, used in Hobby, Jewelry and Watch making and repair work. 🟢 This is made in USA, we also sell the similar economically priced chuck see >>> ebay ID # :201285922480🔻 SPECIFICATIONS: JETS Product # 1301-7012 Made in USA 🔻 🔸 Overall Length: 1-5/16" - 33.44mm 🔸 Shank 2 Position Diameters: 1/8" - 3.17mm end section & 3/16" - 4.73mm body section 🔸 Shaft Length: 19/64" - 7.63mm 🔸 Main Body Diameter: 3/16" - 7.73mm 🔸 Chuck Capacity: 1/32" - 0.035" - 0.90mm 🔸 Chuck Head Length: 35/64" - 13.85mm 🔸 Chuck Nut Knurled Diameter: 17/64" - 6.71mm 🔸 Chuck Nut Length: 3/8" - 9.53mm 🔸 Material: Steel NOTE: Visit JETSTOOLS ebay Store, where you can see various other types of Miniature Mandrels, Adapters,Chucks and Pin Vises and a wide range of many other Hand Tools and Supplies along with a selection of Jewelers Equipment Tools & Supplies. JETSINC. 1214 CKP 1E 4X-1E 15X-3E Z M PA22