A complete 9 piece Allen / hex bit set for road and mountain bike repair and maintenance. Designed to work with all Topeak ratchets and torque wrenches as well as other brand ratchets and bit drivers. Generous 30mm bit length makes it easy to reach tough bolt locations and an added grip-ridge prevents fumbling when changing bits or removing bits from the organizer. Included bits: 1.5 / 2 / 2.5 / 3 / 4 / 5 / 6 / 8 / 10 mm Allen bits. The bits are made from S2 hardened steel and come in an engineering grade polymer organizer. Compatible with Ratchet Rocket series, D-Torq wrenches, Nano TorqBar series, Ratchet Stick and Omni Tool Card.