GripEdge 7pc 3/8Dr Metric Impact RPT Hex Driver Set Short GEIHBM7S

GRIPEDGE RPT (Rounding Prevention Technology) bits are designed to completely replace your traditional drive tools. With RPT bits, you can get up to 50% more torque on new/ good fasteners and up to 400% more torque on stripped/damaged fasteners vs traditional bits. In an emergency situation where you don't have a suitable replacement, RPT gives you the ability to reuse a damaged fastener and tighten it back down. Each impact bit is precision machined from Cr-Mo steel for strength and durability, has laser-etched size markings, and is coated with manganese phosphate for corrosion resistance.

eBay