DEWALT features this pack of 10, 1/4-in x 1-in Square/Robertson impact driver bits. It offers the durability, precision, and convenience that the brand is known for. It an excellent addition to the toolbox of anyone who serious about their projects. The IMPACT READY branding means these bits are made from shock-resistant steel and have undergone DEWALT advanced hardening process to achieve maximum durability. This feature is further enhanced by the FlexTorq technologyallowing the flexible portion to absorb some of the impact driver momentum, reducing the likelihood of bit breakage. These bits are also part the 10X Magnetic Screw Lock System. This feature ensures that screws dont drop or wobble while being driven in. Together with the CNC-machined tips, this translates to improved accuracy and efficiency. The 1/4-in x 1-in hex shank Square/Robertson impact driver bit is another successful product from DEWALT.