The Celestial Hammerlock by Donald Colvin

This bigtime space promoter could get the Horsehead Nebula in a flying mare—but pinning a planetoid is tougher! set in a future where humanity has colonized the stars. The story follows the adventures of a young man named Kale, who is a member of a small group of humans living on a distant planet. Kale and his friends are struggling to survive in a hostile environment, and they soon find themselves embroiled in a conflict between two powerful alien races. Kale must use his wits and courage to survive the dangers of the alien world, and ultimately, he must find a way to save his people from the brink of destruction. Along the way, he discovers the secrets of the mysterious Celestial Hammerlock, an ancient weapon that could turn the tide of the war.