IRWIN Impact Performance Series Right Angle Drill/Drive Tool features a low profile design ideal for accessing tight spots. Engineered for maximum durability and long life with impact drivers, the attachment's chuck accepts all standard 1/4 in hex shank accessories including insert bits. The chuck also features a magnetic collar for secure hold on fasteners. The attachment is constructed with steel gears and a ball bearing drive for smooth drilling and long life, and the molded handle provides a secure and comfortable grip. The all metal housing delivers added durability, and recommended maximums for use are 3000 RPMs and 150 in pounds of torque.