WITT found in older tool box (at least 10 years old). part with spokes rotates, spokes (of different diameters) match up to hole in the oposite side of the tool. Sharpie marker
Beadsmith Rotary Hand Sewing Leather Punch-
Leathersmith Designs
circular holes or holes cut out - is there a difference? - Leatherwork Conversation
Leather Craft Punches — Leather Unlimited
Tool Time // Crew Punches (Oblong Punch) // Including Sharpening Guide
Details Specs Shipping reviews This revolving punch is made in the United States by C.S. Osborne. Nickel plated. A fine quality pressed frame
C.S. Osborne Revolving Punch
Tool Shop® Leather Punch at Menards®
This item 3052-00 punches 3/32 (2.3 mm) holes quickly and evenly on leather up to 3 to 4 oz. in thickness. New tubes are available also. This is an exceptional quality tool with steel tubes.
Tandy Leather 4-in-1 Leather Punch 3052-00
The Beadsmith Rotating Ergonomic Leather Hole Punch, Six Hole-Size Options, Leather Crafts and Jewelry-Making Supplies
How To Install a Belt Buckle Using a Bag Punch