SHB12401-A S2 steel bits are press-fit into the socket for a straight, permanent connection that can't loosen over time. The 6-sided hexagonal tip is machined to precise tolerances for an exact fit with hex fasteners. Its chamfered end easily slides into fasteners, reducing wear.S2 steel bit is press-fit into the socket for a straight, permanent connection that can't loosen over time6-sided hexagonal tip is machined to precise tolerances for an exact fit with hex fastenersExtra-long bits allow you to reach deep into especially narrow, recessed areasLarge, clear die-stamped size marking is easy to read and can't wear offFour detent grooves provide a secure connection with the drive tool and a drilled through-hole allows locking on with retaining pinPolished, chrome-plated finish easily wipes clean and is highly resistant to corrosionBeveled inner rim of the socket opening helps guide it smoothly onto fasteners