If you own an E-Bike, then youll know that cleaning and lubing your chain is a tricky business, as the crank doesnt spin backward like a regular bike unless its flipped upside down - which can scratch components. Our new E-Bike precision-machined Crank Tool contains three different-sized tool bits which snap into place with a magnetized connection, all wrapped up in a durable CNC machined 6061 alumialuminum. It fits straight onto a chain ring, so the crank can be spun backward, and the protective silicone sleeve prevents any crank damage. Comes supplied with a handy lanyard and carabiner clip Precision Machined, 6061 aluminum body with a screw cap Inner polypropylene tool bit holder contains: 5mm, 6mm hex and T30 Torx bits Rubber O-ring reduces water ingress into tool bits