Makita impact Gold is in fastening with a replete line of insert bits, bit holders, nutsetters, socket adapters, and more. Impact Gold is exclusively for use with high-torque impact drivers, with high-strength steel for longer life, and a precision-fit tip engineered to prevent `` cam-out '' and stripping. The impact Gold ultra-magnetic insert bit holder and bits Xtreme torsion technology, which allows the torsion Section of the bit and bit holder to flex under load and take pressure off of the bit tip for increased durability in squealing torque applications. The bikini design is to allow the torsion technology to fully activate. The set also high-strength 6-point sockets made from heat-treated Alloy steel, with total darkness oxide coating to resist corrosion. When used with an impact driver -LRB- sold separately -RRB- the Makita impact Gold ultra-magnetic insert bit and impact socket set is for a broad variety of driving and fastening applications.