Best Proto Hex Keys in 2026

Comes with 2 pieces of 4-way keys in a package, 1 piece sillcock key, 1 piece utilities key, easy to use. Suitable for many valves of electric, water, gas, train, cabinet, elevator, etc.

Both sillcock key and utilities 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 utilities key has square, triangle, and round shape.

The 4-way keys measure 2.87 x 2.87 x 0.55 inches (small) and 3.11 x 3.11 x 0.66 inches (large). Bead chain in hole helps you hang on keys or bags, easy to carry.

One-for-Most: Includes 1PC 4 Way sillcock key of 4 sizes:1/4"(7.5mm), 9/32"(8mm), 5/16"(10mm), 11/32"(11mm), sufficient for most situations

Premium Material: Made of durable steel, keys are not easy to break and remain sturdy in the harshest environments; nickel plating of the surface effectively improves the corrosion resistance, allowing you to use them for a long time

Compact and Efficient: The 4-way sillcock key measures 7.8 x 7.8 x 1.7 cm/ 3.07 x 3.07 x 0.67 inches, small, lightweight and easy to carry or put in your pocket; along with a bead chain, you can hang it on a hook or wherever you want

The set includes 3-in-1 Plumber Wrench and 4 Way Sillcock Key. This 2-pack set are an economical multipurpose product made from durable steel, additional matt finish improves the corrosion resistance of the surface and effectively prolong the service life.

The 3-in-1 Plumber wrench includes a 15/16-inch open end wrench, 9/16-inch open end wrench and an open end 12-point box wrench. Two separate wrenches fit together to form a single tool, providing more options with less to carry.

Prepare for any emergency with 4-Way sillcock key holding 1/4''(7.5mm), 9/32''(8mm), 5/16''(10mm), 11/32''(11mm) specifications. The 4-way sillcock key measures 3.11 x 3.11 x 0.66 inches, proper size for you to carry it hands or put it in your bag.

[High Quality] Hex key set made from heat-treated high quality solid S2 steel with a rust-resistant finish. They have a proper hardness and torsion that make the bits not easy to break and wear.

[More Size Selection] Hex wrench set 10pcs different sizes: 5/64”, 3/32”, 7/64”, 1/8”, 9/64”, 5/32”, 3/16”, 7/32”, 1/4”, 5/16” can meet your different needs.

[Easy To Use] Magnetic hex bit set, it can be firmly fixed on screwdrivers and keep screws stuck to them, can improve your work efficiency.

[High Quality] Hex key set made from heat-treated high quality solid S2 steel with a rust-resistant finish. They have a proper hardness and torsion that make the bits not easy to break and wear.

[More Size Selection] Hex wrench set 10pcs different sizes: 1.5mm, 2mm, 2.5mm, 3mm, 3.5mm, 4mm, 5mm, 6mm, 7mm, 8mm can meet your different needs.

[Easy To Use] Magnetic hex bit set, it can be firmly fixed on screwdrivers and keep screws stuck to them, can improve your work efficiency.

Extended Handle: 16 inch water meter key would be more convenient.

Eapele Water Meter Key Dimensions: 16 inches long, 7.5 inch handle, 3/4 inch key opening.

Water Meter Key is made of heavy duty steel with t-style super grip power handle.

<b>▲ 【HIGH PRECISION & HIGH HARDNESS 】</b> 20 Piece Hex Head Allen Wrench Drill Bit Set. Crafted and Designed with Heat-treated S2 alloy steel bits for increased torque and unmatched hardness. The results of tests show that the maximum torsion force of bits are 180-200N and the hardness of bits are 60±2HRC. The high torsion and proper hardness avoid the bits break and wear.

<b>▲ 【MAGNETIC & ANTI-RUST 】</b> 20 pieces of bits are magnetic tips so they can hold screws easily.Complete rust and corrosion resistance with fully polished, Chrome plated mirror finish bits treatment.

<b>▲ 【LONGEVITY & 100% RISK-FREE】</b> Heat-treated S2 alloy steel bits, Reduce wear-outs. Hardened treated Chrome Vanadium steel sockets, Increase turning power.

【Lengthen to 17 Inch】- WINISOK water meter key upgraded to 17 inches long, 7.5 inch handle, 3/4 inch key opening, help you open and close curb main and water meters and underground stop or waste valves easily.

【Reinforced Steel】- The Valve Shut off Key is made of contractor grade heavy duty rebar steel, strong and durable, which you can use for a lifetime.

【Lazy Design】- Labor-saving T-handle design, covered with a layer of non-slip Vinyl, it feels comfortable and easy to turn.

[S2 Material Forging]: The drill bit made of high quality S2 steel material is durable and suitable for industrial use.

[SAE]: 1/4 inch hex handle 12 piece hex bits sizes include 5/64 inch, 5/64 inch, 3/32 inch, 3/32 inch, 7/64 inch, 1/8 inch, 9/64 inch, 5/32 inch, 3/16 inch, 7/32 inch, 1/4 inch, 5/16 inch.

[Metric]: 1/4 inch hex handle 12 piece hex bits sizes include 1.5mm, 1.5mm, 2mm, 2mm, 2.5mm, 3mm, 3.5mm, 4mm, 5mm, 6mm, 7mm, 8mm.

Include various of 1/4" Drive bits: 1.27mm / 1.5mm / 2.0mm / 2.5mm /3.0mm Hex Driver Bit.

The bits Made from high quality Titanium materials, resistant to stripping & breaking, rust-free, Durable.

1/4" Hex Shank, work on any 1/4 inch electric screwdriver, hand screwdriver, electric drills and air drills.

12-Piece SAE hex bits sizes include 1.5mm, 1.5mm, 2mm, 2mm, 2.5mm, 3mm, 3.5mm, 4mm, 5mm, 6mm, 7mm, 8mm.

12-Piece metric hex bits sizes include 5/64", 5/64", 3/32", 3/32", 7/64", 1/8", 9/64", 5/32", 3/16", 7/32", 1/4", 5/16".

1-Piece 2.36"(6cm) Strong Magnetic force Extension Socket. The bits is made of high quality S2 alloy steel ,with sturdy hardened and tempered construction.

S2 Durability - Premium 20-Piece Hex Bit Set featuring 2.3" Allen Wrench Drill Bits, made of high-quality S2 alloy steel for long-lasting durability and strength.

Corrosion Resistance - The sturdy hardened & tempered construction ensures high performance, while the brown oxide finish offers protection against corrosion for an extended lifespan.

Magnetic Convenience - Hardened magnetic tips ensure efficient and easy handling of screws, providing a secure grip and improving user experience.

【Ergonomics T-handle Grip】:High-strength nylon mix with fiberglass makes handle working durable but comfortable.You could save strength by using WISEUP t-handle wrench without slip.

【CR-V steel forging】: chrome vanadium steel after overall heat treatment,WISEUP wrenches are more hardness, more toughness,larger torque and longer life,as well as anti-rust.

【Quality craftsmanship】:WISEUP allen key set is much longer than others which are suitable for narrow space.Every wrench will be polishing that won't be hurt your hands.

【Ergonomics T-handle Grip】:High-strength nylon mix with fiberglass makes handle working durable but comfortable.You could save strength by using WISEUP t-handle wrench without slip.

【CR-V steel forging】: chrome vanadium steel after overall heat treatment,WISEUP wrenches are more hardness, more toughness,larger torque and longer life,as well as anti-rust.

【Quality craftsmanship】:WISEUP allen key set is much longer than others which are suitable for narrow space.Every wrench will be polishing that won't be hurt your hands.

【Ergonomics T-handle Grip】:High-strength nylon mix with fiberglass makes handle working durable but comfortable.You could save strength by using WISEUP t-handle wrench without slip.

【CR-V steel forging】: chrome vanadium steel after overall heat treatment,WISEUP wrenches are more hardness, more toughness,larger torque and longer life,as well as anti-rust.

【Quality craftsmanship】:WISEUP allen key set is much longer than others which are suitable for narrow space.Every wrench will be polishing that won't be hurt your hands.

【Material】Metal, Rubber;Silver Tone, Yellow;

【Size Details】290 x 182 x 14mm/ 11.4" x 7.09" x 0.55" (L*W*T) Hex Size : 10mm/ 0.4"

【Product Name】T Wrench;Socket Type : Hex;

Premium Material: Omninmo cross key is designed with a cross shape, that is made of zinc alloy with electrolytic polishing surface, it is sturdy and durable handy tool, you can apply it for a long lasting time.

Practical Tool: This 4 Way Cross Key is an economical multipurpose product made from durable steel, additional matt finish improves the corrosion resistance of the surface and effectively prolong the service life. It's an essential part of your emergency preparedness kit since it can give you access to restricted water supplies.

Multi Functions: Omninmo 4-way multi-functional universal cross key is a handy tool for plumbers, electricians and so on and can be applied so long.

Specification: Color: Silver; Material: Aluminum alloy; Total Size: 50×35 mm/2×1.38 inch(Length*Width); Key Shape Size: 11.5x5 mm/0.45×0.2 inch(Side Length*Height )

Advantage: 1. Made of aluminum alloy material and surface chrome plating process, beautiful and durable, which can last a long using time. 2. Mini universal key wrench, light enough to carry around in a bag.

Instruction: Use the spanner key that matches your device, turning the valve switch or screw.

Specification: Color: Silver; Material: Aluminum alloy; Total Size: 50×35 mm/2×1.38 inch(Length*Width); Triangle Size: 13x10 mm/0.51x0.39 inch(Side Length*Height )

Advantage: 1. Made of aluminum alloy material and surface chrome plating process, beautiful and durable, which can last a long using time. 2. Mini universal key wrench, light enough to carry around in a bag.

Instruction: Use the triangle spanner key that matches your device, turning the valve switch or screw.

Color: Silver; Material: Aluminum alloy; Total Size: 50×35 mm/2×1.38 inch(Length*Width); Triangle Size: 13x10 mm/0.51x0.39 inch(Side Length*Height ); Key Shape Size: 11.5x5 mm/0.45×0.2 inch(Side Length*Height )

Advantage: 1. Made of aluminum alloy material and surface chrome plating process, beautiful and durable, which can last a long using time. 2. Mini universal key wrench, light enough to carry around in a bag.

Instruction: Use the socket spanner key that matches your device, turning the valve switch or screw.

Specification: Color: Silver; Material: Aluminum alloy; Total Size: 50×35 mm/2×1.38 inch(Length*Width); Triangle Size: 13x10 mm/0.51x0.39 inch(Side Length*Height )

Advantage: 1. Made of aluminum alloy material and surface chrome plating process, beautiful and durable, which can last a long using time. 2. Mini universal key wrench, light enough to carry around in a bag.

Instruction: Use the triangle spanner key that matches your device, turning the valve switch or screw.

Color: Silver; Material: Aluminum alloy; Total Size: 50×35 mm/2×1.38 inch(Length*Width); Triangle Size: 13x10 mm/0.51x0.39 inch(Side Length*Height ); Key Shape Size: 11.5x5 mm/0.45×0.2 inch(Side Length*Height )

Advantage: 1. Made of aluminum alloy material and surface chrome plating process, beautiful and durable, which can last a long using time. 2. Mini universal key wrench, light enough to carry around in a bag.

Instruction: Use the socket spanner key that matches your device, turning the valve switch or screw.

Prepare for any emergency with 4-Way sillcock key holding 1/4’’(7.5mm), 9/32’’(8mm), 5/16’’(10mm), 11/32’’(11mm) specifications. The compact size makes it easy to store with your survival kit.

This 2-pack sillcock keys are an economical multipurpose product made from durable steel, additional matt finish improves the corrosion resistance of the surface and effectively prolong the service life. It's an essential part of your emergency preparedness kit since it can give you access to restricted water supplies.

The 4-way sillcock key measures 3.11 x 3.11 x 0.66 inches, proper size for you to carry it hands or put it in your bag.