GRIPEDGE - “ITS ALL ABOUT THE GRIP” GRIPEDGE R.P.T. (Rounding Prevention Technology) Impact Hex bit sockets are designed to replaced standard hex tools. R.P.T. Technology provides up 50% more prevention torque on good fasteners vs standard tools, whilst applying up to 400% more torque on damaged fasteners vs standard tools. The unique, patented, & bi-directional geometry prevents the rounding of good fasteners whilst being able to removed extremely compromised fasteners. Compromised fasteners can be re-inserted in a pinch if a suitable replacement is not available. Each bit is precision machined from Cr-Mo steel for increased strength and durability as well as coated for increased corrosion resistance. All sockets have oversize, laser etched size markings for greater visibility, and manganese phosphate coating for corrosion resistance.