Features and Benefits:At 0.88" (22.5mm) long, sockets are 35% shorter than shallow impact sockets and 15% shorter than other stubby impact sockets.All sockets feature a 17mm outside hex for increased access when used with a wrench.Forged CR-MO with superior material thickness between socket body and drive compared to other setsThe Astro Pneumatic Tool 78319 19-Piece 3/8"Drive Low Profile Nano Impact Socket 6-24mm -No Skips are 35% shorter than shallow impactsockets and 15% shorter than other stubbyimpact sockets at a 0.88" (22.5mm) long. Allsockets in this set feature a 17mm outside hexfor increased access when used with a wrenchand are forged from CR-MO with superiormaterial thickness between socket body and drive compared to other sets.