This new and improved Milwaukee-branded Nut Setter kit can quickly and precisely drive in our universal tarmac/concrete fixing as well as any other fixing with a 16mm head. It is supplied in two parts: a 16mm impact-rated socket in 3/8 square drive and a 3/8" square drive to 1/4" hex drive adaptor. When used instead of a manual ratchet, this nut setter can significantly speed up the installation of bolts on speed bump kits. SHOCKWAVE™ IMPACT DUTY steel (Chrome-Molybdenum) is high quality alloy steel which provides ultimate strength and durability. Best fitting thanks to 6 gripping points. Non-slip hex geometry to prevent socket and fastener rounding. Deep wall construction provides clearance for protruding bolts. Stamped and ink filled diameter markings and laser etched part number for wear resistance. Dual hole design and grove for security accessories.