Our 9-in-1 Square Drive Multi-Bit Ratcheting Screwdriver features 3-1/2” Power Groove bits for power tool compatibility and maximum jobsite versatility. A metal ratchet provides 2X faster driving in high torque applications without sacrificing durability or control. The multi-bit screwdriver also has a square drive shaft providing additional leverage. The interchangeable bits are precision machined and chrome-plated for marine grade rust protection and reduced wear, providing you with maximum durability on the jobsite. The compact screwdriver features a magnetic bit retention for consistent driving performance. The MILWAUKEE® 9-in-1 Square Drive Multi-Bit Ratcheting Screwdriver is designed for the jobsite and includes Milwaukee’s Limited Lifetime Warranty.