Prevention

Prevention tools stop a fastener from rounding in the first place. Every socket, bit, key and driver here is built with Rounding Prevention Technology (RPT), a patented profile that bears on the flat walls of a hex, star or triple square recess instead of its corners. That spreads the load, lets you apply full torque on a new bolt, and gets a bite on one that is already damaged. The range covers hand drive and impact bit sockets, Dual Action Drive bits, T-handles, L-keys and screwdriver bits, in metric and SAE, sold individually and in sets. Use the filters to narrow by fastener profile, size and drive.