Caterpillar style standard, dirt bucket tooth for a K100 series; takes a 220-9090 pin. Quality aftermarket G.E.T. (bucket teeth) for Caterpillar (CAT), JCB, Bobcat, Takeuchi, John Deere, Case, Komatsu, Kubota and many others including manufacturers such as ESCO, Hensley, H&L for all your backhoe, loader, skid steer, grader, scraper and excavator bucket tooth (teeth) needs.