Carbon steel and chrome vanadium steel -- These drill extension racks are made of high-quality carbon steel and chrome vanadium steel, and have a heavy-duty structure that can extend their service life.
Application -- General-purpose 1/4-inch fast hex shank and 1/4-inch hex socket are widely used in various electric screwdrivers and drill bits. There are three extension brackets of different lengths, you can use the appropriate one according to different needs.
Magnetic -- The bit holder is magnetic, which can be quickly connected or disconnected, and ensures that it stays in place during use.