impact grade socket adapter/extension set turns power drill into high speed nut driver,1/4-inch hex shank to drive for adapters to use with drill chucks, sizes 1/4" 3/8" 1/2", cr-v, 3-piece cigotu <p><b>professional services</b></p><p><b>if you have any doubts about our products, please feel free to contact us. </b></p><p><b>after you receive the product, if you have any question about the use of methods and product performance, we will provide you with professional, caring sales service.</b></p><p><b>we offer a 30 day money back guarantee along with a 12 month replacement warranty.</b></p><p><b>about 1/4-inch drive drill socket adapter/extension set</b></p><p>suitable for quick change 1/4" chuck systems or directly into drill chuck.</p><p>turns any power/cordless drill into a power nut driver.</p><p>handy for fast driving of nuts, bolts and fixings, etc.</p><p>spring loaded ball bearing on head holds sockets securely.</p><p>widely used in home diy, carpentry, auto parts, specializing in machine repair and so on.</p><p><b>specification :</b></p><p>weight: approx.100g</p><p>all sockets standard 1/4" hex shank</p><p><b>key features: </b></p><p>1. adapts sockets to power drills and drivers</p><p>2. detent ball for secure socket retention so sockets snap on tightly and won’t slip off</p><p>3. 1/4-inch hex shank prevents stripping during high speed drill operation</p><p>4. super strong heat-treated chrome vanadium steel for normal and impact use</p><p>5. sandblasted finish</p><p>6. converts all power drills into speedy socket drivers</p><p>7. use with a hand screwdriver handle or battery/power tool</p><p>8. color coded for easy recognition </p><p><b>size:</b></p><p>1/4 * 1/4 * 65mm length -- 1/4 " shank can be converted to 6.35mm square head</p><p>3/8 * 1/4 * 65mm length -- 1/4 " shank can be converted to 9.4mm square head</p><p>1/2 * 1/4 * 72mm length -- 1/4 " shank can be converted to 12.6mm square head</p><p><b>package included:</b></p><p>1 x (1/4" hex shank to 1/4" socket)socket adapter</p><p>1 x (1/4" hex shank to 3/8" socket)socket adapter</p><p>1 x (1/4" hex shank to 1/2" socket)socket adapter</p>