Using the Milwaukee 48 - 53 - 2681 small bulb head is easy. First, make sure it's properly attached to your drain machine or other professional drain - cleaning equipment. Then, slowly insert it into the drain. The unique design allows for good maneuverability, so it can easily reach the clog. When you're done, clean the cable to keep it in good condition. Don't forget to check the end - of - cable indicator to avoid over - inserting. As for maintenance, store it in a dry place to prevent rust. The RUST GUARD plating helps a lot, but keeping it dry will extend its life even more. And if you ever experience any defects or breakage within 2 years, you're covered by the warranty.