Tools & Specialty Items Dottie | #3 X 1” Square Drive Insert Bit

Square Drive Insert Bits Are Manufactured For Use With 3-Jawed Drill Chucks And Magnetic Bit Holders. These Bits Feature A Slightly Tapered Square Shape Which Holds On To The Screw For 1-Handed Driving And Deliver High Torque While Reducing Camout. They Are Heat Treated To Prevent Wear And Provide Maximum Durability.