Tools & Chemicals for 2018+ Harley M8 Motorcycles. The 2018+ M8 Tools & Chemicals collection at TC Bros is curated for builders and riders who demand precision, performance, and quality in maintaining or customizing their Milwaukee-Eight Harley-Davidsons. Featuring essential tools, high-performance lubricants, cleaners, and specialty chemicals, this collection is designed to support models like the Softail Street Bob, Fat Bob, and Low Rider. Whether you’re fine-tuning a factory setup or crafting a one-of-a-kind chopper, these products provide the reliability and ease of use needed for every step of your build. Rooted in the tradition of unique custom motorcycle craftsmanship, TC Bros not only supplies best-in-class products but inspires builders to take their bikes to the next level with attitude and creativity.