The Hobo Nickle Holder uses a unique brass collet system that has been designed specifically for the most popular coins artists work with. The outer portion of the vise provides a sturdy clamping system to reduce vibration. By attaching the orbital ball to the bottom, the artist gains the ability to tilt the fixture while being able to rotate their vise, keeping the working area centered under the microscope. Collets for Penny, Dime, Nickel, Quarter, Dollar, Half Dollar, Eisenhower Dollar. This fixture is compatible with the Jura by GRS 3X Line.