King Oil Tools was founded in 1937 by Walter E.
King to service the oilfield industry. Since that
time, King has grown to be the world’s leading
manufacturer and supplier of rotary drilling
swivels. With the explosion of water well drillers
after World War II ended, half our units
have been used drilling for water ever since.
Historically, half of King’s sales comes from the
rig manufacturers. Consequently, any rig owner
is a potential customer for a replacement swivel
and/or repair parts, and any other drilling tools.
All of King Oil Tools’ swivels have been designed
for specialized applications for either individuals
or rig manufacturers. Through the years these
specialized tools have become standard