The best cross key under $20

Updated November 13, 2026 3 / 10 products

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3 of the 10 products in our "cross key" selection fit a budget of $20 or less.

See the full selection (10 products) →

Budget Advice

Entry-level alloy keys are very affordable, while mid-range options offer better durability. Premium professional-grade tools cost significantly more but provide superior longevity.

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No. 1 in the full selection

Best Choice
HCJspring - HCJspring 2 Pcs 4 Way Cross Key, Multifunction Universal Opening Cross Key for Gas Meter,Plumbers, Faucet, Electricians, Train Door, Electrical Cupboard Box Elevator water Meter Valve Opening
#1
Best Choice
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Prime

Prime

  • MULTI FUNCTIONS: 2 PCS 4-way multi-functional universal cross key is a handy tool for plumbers, electricians and so on and can be applied so long.
  • MATERIAL: This Universal Utility Key is made of zinc alloy with electrolytic polishing surface, sturdy and Durablity, rust resistant and damage prevention, which allows you to apply it for a long lasting time.
$8.99
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No. 2 in the full selection

DURATECH - DURATECH 4 Way Sillcock Key Set, Utility Key, Multi-functional Water Key, 2-Pack, for Valve, Faucet, and Spigots
#2
Top Pick
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Prime

Prime

  • Comes with 2 pieces of 4-way keys in a package, 1 piece sillcock key, 1 piece utility key, easy to use. Suitable for many valves of electric, water, gas, train, cabinet, elevator, etc
  • Both sillcock key and utility key are in 4-in-1 design, 4 way sillcock key is compatible with stems in 1/4 ", 9/32 ", 5/16 ", 11/32 ", and utility key has square, triangle, and round shape
$12.99
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No. 3 in the full selection

Shappy - Shappy 2 Pack Electric Cabinet Panel Keys Gas Meter Water Sillcock Utility 4 Way Keys Multi-functional, Black
#3
Top Pick
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Prime

Prime

  • Warm Notice: this utility key is not suitable for some kind of radiator, please make sure its size is match your device before you buy
  • Size: the metal train key is approx. 7.2 x 7.2 x 1.3 cm/ 2.83 x 2.83 x 0.51 inches, standard size for gas box, meter box, water box, elevator and so on
$6.99
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