Made by Jim’s Machining. This is a new in the box mainshaft nut removal tool. Fits the 1 7/8 inch left hand nut on four and five speed transmissions on Harley Davidson big twins from 1936 thru 2006. Box opened for picture. Jim’s part number 94660-37A. Great tool, I have several that I have used in the shop every week for 20 years. There are cheaper ones with lots of claims, but trust my words, Jim’s tool are the industry standard.