GRIPEDGE - "ITS ALL ABOUT THE GRIP" GRIPEDGE R.P.T. (Rounding Prevention Technology) Star bit sockets are designed to replaced standard star tools. R.P.T. prevents the rounding of good Star fasteners whilst being able to remove extremely compromised Star fasteners. The unique, patented & Bi-directional geometry delivers up 50% more prevention torque on good fasteners vs standard tools, whilst applying up to 400% more torque on damaged fasteners vs standard tools. Compromised fasteners can be re-inserted in a pinch if a suitable replacement is not available. Each bit is precision machined from S2 steel for increased strength and durability as well as coated for increased corrosion resistance. All sockets have oversize, roll stamped, and ink filled size markings for greater visibility and nickel chrome plating ensures corrosion resistance.