• Includes three sizes of sprockets and one length of size 25 steel roller chain for students in grades 9-12 building TETRIX robotics projects.
• Aircraft-grade aluminum sprockets come with 16, 24, and 32 teeth for building a chain drive that transmits mechanical energy on a robotics project.
• Steel roller chain is 5 feet long and works with all sizes of TETRIX sprockets.
• Chain can be cut to different lengths with the Chain Breaker Tool (sold separately).
• Includes four master links for reconnecting chains cut to shorter lengths.

The Pitsco 39174 TETRIX Aluminum Sprocket and Chain Pack includes three sizes of sprockets and one length of size 25 steel roller chain for students in grades 9-12 building TETRIX robotics projects. The aircraft-grade aluminum sprockets come with 16, 24, and 32 teeth for building a chain drive that transmits mechanical energy on a robotics project. Aluminum resists corrosion and tarnishing, and is lightweight. The sprockets measure 35.8mm, 51.9mm, and 67.8mm in diameter. The steel roller chain is 5 feet long and works with all sizes of TETRIX sprockets. It can be cut to different lengths with the 39217 TETRIX Chain Breaker Tool (sold separately). The pack includes master links for reconnecting chains that have been cut to shorter lengths. TETRIX products reinforce science, technology, engineering, and mathematics (STEM) concepts for students in grades 9-12 studying robotics and building a working robot that demonstrates engineering, simple machines, force, and Newton's laws of motion. A TETRIX sprocket and chain can be used in an educational setting to build parts that transmit power on a working robot that demonstrates engineering, simple machines, force, and Newton's laws of motion, among other mechanical applications. Science education products incorporate applied math and science principles into classroom and homeschool-based projects. Teachers in pre-K, elementary, and secondary classrooms use science education kits and products alongside science, technology, engineering, and math (STEM) curriculum to demonstrate STEM concepts and real-world applications through hands-on activities. Science education projects include a broad range of activities, such as practical experiments in engineering, aeronautics, robotics, energy, chemistry, physics, biology, and geology. Pitsco Education develops K-12 science, technology, engineering, and math (STEM) curriculum, educational kits, and classroom tools. The company, founded in 1971, is headquartered in Pittsburg, KS. What's in the Box? ------------------ * 39165 TETRIX 16-tooth Sprocket Pack (pkg. of 2) * 39169 TETRIX 24-tooth Sprocket Pack (pkg. of 2) * 39171 TETRIX 32-tooth Sprocket Pack (pkg. of 2) * 5-foot length of size 25 steel chain * Master connecting links (4)