ITEM NAME:Drill Socket Adapter And Impact 3-Inch Extension Socket Adapter Set,Extensi A9M1 Drill Socket Adapter And Impact 3-Inch Extension Socket Adapter Set,Extensi A9M1 DIY:These extensions, adapters, and reducers are designed for Impact use and feature spring-loaded detent balls to securely latch sockets, while the through-holes in the drive end of the adapters and reducers lock onto the drive tang. Great for the DIY, household maintenance, and most general repairs, not for industrial work. A great tool addition to any tool box set High Quality:The extension adapters are made of heat treated Chrome Vanadium steel with a Black Oxide coating, and the adapters and reducers are made from high-strength, premium Chrome Moly Steel with a Manganese Phosphate coating to help resist rust and corrosion and ensure a life time of use Widely Application:Suitable for Quick Change 1/4-Inch Chuck Systems or Directly into Drill Chuck.Any power cordless drill into a power nut driver. Handy for Fast Driving of Nuts, Bolts and Fixings, etc. Spring Loaded Ball Bearing on Head Holds Sockets Securely Why choose us:High Quality:Extension sets are made from heat-treated Chrome Vanadium steel with a Black Oxide coating, and the adapters and reducers are made from high-strength, premium Chrome Moly steel with a corrosion-resistant Manganese Phosphate coating, so you know this set is made to last. Widely Application:With three 3-inch extensions in 1/4-inch, 3/8-inch, and 1/2-inch drive sizes, two adapters, and two reducers, this set includes everything you need to get the most out of your impact tools Features These impact extensions are 1/4-inch hex shank and are made of heat treated Chrome Vanadium steel with a Black Oxide coating, so you'll be able to count on them to work when you need them to and stand up to high-torque situations. This set includes the following extensions: 4pcs 1/4-inch 2pcs 3/8-inch 2pcs 1/2-inch This black oxide coated heat treated vanadium steel socket adapters ar