This set includes 25 1" insert bits, 6 2" power bits, 1 1/4" socket adapter, and 2 1-3/4" magnetic nutsetters. The bits feature precision machined tips and optimized torsion zones for improved bit life. The set is designed for use with Makita high torque impact drivers and driver-drills. Price drops from $36 to just $17.99. Shipping is free for prime members or on orders over $35.