Master key sets for a variety of locks are available at Amazon.com and StormLockPicks.com, as of 2016. The range of master keys at StormLockPicks.com includes keys for excavators and other heavy machinery, various brands of lockers and fire-brigade locks. Amazon.com stocks master keys for construction equipment and lug nuts.
StormLockPicks.com's plant and machinery master key set is a set of 46 keys that fit a range of plant machinery and excavators. The keys fit equipment from different manufacturers, including Bobcat, Caterpillar, John Deere and Komatsu.
A different set of keys from StormLockPicks.com is designed to fit Lowe and Fletcher locks on desks and lockers. There are eight keys in the set. A similar set of three keys is available for Euro-Locks locks. StormLockPicks.com's set of six fire brigade keys is designed to fit locks on gates and communal storage areas.
A smaller master key set for heavy equipment and construction is available from Amazon.com. The set consists of 10 keys that fit over 80 pieces of equipment. The keys fit equipment from various manufacturers, including Daewoo, Hitachi, Kawasaki and Massey Ferguson. Amazon.com also carries a different style of master key set that is designed for removing aftermarket wheels from cars. The Steelman lug nut master key set is a set of 16 lug nut keys that fit most aftermarket wheels. A combination wrench is required to use the keys.