FAQ

Sure thing! If you CLICK HERE you can access all the SUNEX Tools product manuals.

CLICK HERE for the latest SUNEX Tools!

We offer tools in the following categories:

Sockets (Impact & Chrome)

Hand Tools (Wrenches, Screwdrivers, Torque Wrenches & Adapters, Keys, Pry Bars, Knives, Pliers, Bit Sets & Nutsetters & Specialty Tools)

Lifting (Floor Jacks, Off-Road Jacks, Truck Jacks & Equipment, Transmission Jacks, Clutch Jacks, Bottle Jacks, Long Flat Bottom Ram Jacks, Jack Stands, Underhoist Stands, Engine Cranes & Stands, Wheel Dollies, Portable Hydraulic Power Kits & Accessories)

Air Tools (Impact Wrenches, Blow Guns & Vacuums, Grinders, Air Saws, Air Hammers, Needle Scalers, Body and Repair Tools, Cut Off Tools, Drills, Ratchets, Sanders & Accessories)

Shop [(Tool Storage including Magnetic Organization, Service Carts, Work Tables & Accessories); (Equipment including Seats & Creepers, Bench Grinders, Drill Presses, Pullers, Strut & Coil Compressors & Specialty Tools); Presses including Bearing Splitters & Accessories)

Yes! We offer the following sets in custom EVA foam:

9737 - 37 Piece Bit Socket Set

9909 - 13 Piece V-Groove SAE Wrench Set

9911M - 13 Piece V-Groove Metric Wrench Set

What’s the Difference Between SAE and Metric Tools?

When it comes to choosing between SAE and Metric tools, understanding the difference can save you time, frustration, and ensure the right fit for your projects. Both systems are used to measure tool sizes for wrenches, sockets, hex keys, and fasteners, but they cater to different needs.

SAE Tools
SAE tools, also known as standard or imperial tools, use inches to measure fastener and tool sizes. Common in the U.S., SAE measurements are often used for automotive work, especially on older American-made vehicles. You’ll see sizes like 1/4-inch or 7/16-inch on wrenches and sockets. SAE tools are ideal for professionals and enthusiants working with equipment or vehicles manufactured in North America.

Metric Tools
Metric tools, measured in millimeters (mm), are the global standard, used in most countries and industries outside of the U.S. Metric wrenches, sockets, and hex keys are often needed for imported cars, bicycles, and machinery. Metric sizes like 10 mm or 13 mm are common, and their precise measurement helps ensure a snug fit, reducing the risk of stripping fasteners.

Why Do You Need Both?
In today’s globalized world, most professionals and enthusiasts find it essential to have both SAE and metric tools. Whether you’re servicing an American-made car from the ‘70s or working on a modern European appliance, having the right tool for the job is critical. Metric fasteners are often used on foreign vehicles and newer products, while SAE sizes are still standard for older and some domestic equipment.

Key Tool Comparisons

• Wrenches and Sockets: SAE wrenches will have sizes like 3/8", while metric wrenches have sizes like 10 mm. The difference in units means that using the wrong system can lead to slippage or damage.
• Hex Keys: Similar to wrenches, SAE hex keys measure in inches, like 1/8", while metric hex keys measure in millimeters, like 4 mm. Metric hex keys are commonly required for bicycles, furniture assembly and fittings.

Choose SUNEX Tools for a Full Range of SAE and Metric Tools
At SUNEX Tools, we understand the importance of having both SAE and metric options. Our durable, precision-made tools are designed to handle any job, whether you’re working in your personal garage or at your place of business. With clearly marked sizes and a variety of tool sets, we’ve got you covered for both SAE and metric fasteners, ensuring you always have the right tool for the task.

What is Chrome Molybdenum (CR-MO) and Why is it Important for Impact Sockets?

Chrome Molybdenum (Cr-Mo) is a high-strength alloy that combines chromium and molybdenum, providing exceptional durability and flexibility—two essential qualities for impact tools like sockets. The primary benefit of Cr-Mo steel lies in its ability to withstand high torque and repeated use, making it a go-to material for tools subjected to heavy-duty applications. Cr-Mo alloy has higher toughness compared to Chrome Vanadium (Cr-V), which is another commonly used material for hand tools.

Impact sockets made of Cr-Mo are designed to handle the extreme forces generated by impact wrenches without cracking or wearing out prematurely. This material is especially resistant to impact shock, reducing the risk of brittleness or fracture, which can occur with Cr-V in high-stress situations. The flexibility of Cr-Mo allows it to absorb these shocks more effectively, enhancing the socket’s lifespan. Moreover, Cr-Mo alloys retain their hardness and strength even under high temperatures, making them ideal for industrial environments and extended usage​.

For these reasons, Cr-Mo sockets are often preferred for automotive, aerospace, and industrial applications where impact tools are used regularly. SUNEX Tools utilizes Cr-Mo in our impact sockets to ensure superior performance, longevity, and safety for professionals who need reliable tools for demanding tasks.

By choosing Cr-Mo impact sockets, users gain a tool that delivers consistent performance, resists wear and tear, and maintains strength under extreme conditions. These advantages translate to fewer tool replacements and greater efficiency, offering excellent value for mechanics and professionals across industries.

This combination of strength, durability, and reliability is why SUNEX Tools trusts Cr-Mo steel for its impact sockets. When searching for long-lasting, high-quality tools, consider the superior properties of Cr-Mo to ensure your equipment withstands the toughest jobs.

PLEASE REFER TO THE EXPLODED VIEW DRAWING IN THE MANUAL FOR SPECIFIC JACK IN ORDER TO IDENTIFY PARTS.

1. Depress the upper handle lock in the upper handle while simultaneously inserting the end of the upper handle in the lower handle. Rotate the upper handle back and forth until the handle lock seats in the hole in the lower handle lock hole.

2. Unscrew the handle bolt so that it will not interfere with the insertion of the handle in the handle socket. Insert the handle in the handle socket and rotate the handle assembly back and forth until the release valve fits in the receiver in the bottom of the handle. Secure the handle in the handle socket by tightening the handle bolt.

3. Sometimes air gets trapped in the hydraulic system during shipping and handling. If the pump feels spongy, or there is not a full incremental pump stroke, or the jack will not raise to maximum height, follow these instructions in order to purge air from the system: 

a) With the lift arm in its completely retracted position and the pump handle rotated all the way in a clockwise direction until it stops, rotate the pump handle in a counterclockwise direction two full revolutions. 

b) Proceed to pump the jack 15 full incremental pump strokes. 

c) Rotate the pump handle clockwise until it stops and proceed to pump the handle until the lift arm reaches maximum height. 

d) Repeat steps "A" through "C" until all air is purged from the system.

‼️ IMPORTANT ‼️: Before attempting to raise any vehicle, check vehicle service manual for recommended lifting surfaces.

OPERATION:
1. Put vehicle transmission in park or in gear and then apply the emergency brake. 

To raise load: Turn the handle in a clockwise direction until tight. Position the jack under the load. Proceed to pump the handle in order to raise the lift arm to the load. As the saddle at the end of the lift arm gets closer to the load, reposition the jack so the saddle will contact the load firmly and the load is centered on the saddle. Make sure the saddle is correctly positioned. Raise the load to the desired work height. Place jack stands of appropriate capacity at the vehicle manufacturers's recommended support areas that provide stable support for the raised vehicle. DO NOT CRAWL UNDER VEHICLE WHILE LIFTING VEHICLE OR PLACING OR REMOVING THE JACK STANDS! Once jack stands are positioned, turn the jack handle VERY SLOWLY in a counterclockwise direction to lower the load to rest on the jack stands. Inspect the relationship between the jack stands and load to make sure the setup is stable and safe. If the setup is not stable or safe, follow the preceding steps until corrected. 

2. To lower load: Follow the procedures mentioned in "To raise load" section of the OPERATING INSTRUCTIONS in order to raise the load off the jack stands. Once the load has cleared the jack stands, remove the jack stands from under the load and away from the work area. Turn handle very slowly in a counterclockwise direction until the load is completely lowered to the ground. Once the jack's lifting saddle has cleared the load, remove the jack from under the load. DO NOT CRAWL UNDER VEHICLE WHILE LIFTING VEHICLE OR PLACING OR REMOVING THE JACK STANDS! CAUTION: Keep hands and feet away from the hinge mechanism of the jack.

‼️ IMPORTANT ‼️: PREVENTATIVE MAINTENANCE Be advised and alert to potential personal injury hazards. Obey all instructions to avoid possible injury or death.

1. Always store the jack in a well protected area where it will not be exposed to inclement weather, corrosive vapors, abrasive dust, or any other harmful elements. The jack must be cleaned of water, snow, sand, grit, oil, grease or other foreign matter before using.

2. The jack must be lubricated periodically in order to prevent premature wearing of parts. A general purpose grease must be applied to all zerk grease fittings, caster wheels, front axle, elevator arm, handle base pivot bolts, release mechanism and all other bearing surfaces. Worn parts resulting from inadequate or no lubrication are not eligible for warranty consideration. See page 5 for lubrication instructions.

3. It should not be necessary to refill or top off the reservoir with hydraulic fluid unless there is an external leak. An external leak requires immediate repair which must be performed in a dirt-free environment by an authorized service center.

IMPORTANT: In order to prevent seal damage and jack failure, never use alcohol, hydraulic brake fluid or transmission oil in the jack.Use Chevron Hydraulic Oil AW ISO 32 or its equivalent Unocal Unax AW 150.

4. Every jack owner is responsible for keeping the jack labels clean and readable. Use a mild soap solution to wash external surfaces of the jack but not any moving hydraulic components. Contact SUNEX for replacement labels if not readable.

5. Inspect the jack before each use. Do not use the jack if any component is cracked, broken, bent, shows sign of damage or leaks hydraulic fluid. Do not use the jack if it has loose or missing hardware or components, or is modified in any way. Take corrective action before using the jack again.

6. Any hydraulic repairs within the warranty period must be performed by an authorized service center.

HYDRAULIC JACK MAINTENANCE GUIDE

IMPORTANT: Service jacks are designed for lifting purposes only; always support raised load with jack stands.

REGULAR MAINTENANCE

• MONTHLY or as necessary (depending on usage) 

1. Using a grease gun, add grease to grease fitting in the lift arm pivot shaft. (Use a multi-purpose NLGI type grease only.) 

2. Lubricate all linkages and pivot points. (Use white lithium spray grease only.) 

3. Remove handle; lubricate handle receptacle and handle end. (Use white lithium spray grease only.) 

4. Lubricate both rear casters, bearing and both front wheels. (Use white lithium spray grease only.) 

5. Tighten all accessible hardware.

PROPER STORAGE

It is recommended that the jack be stored in a dry location with all wheels touching the ground on a relatively level surface.

TROUBLESHOOTING

Important: Service jacks are self-contained devices used for lifting, but not sustaining, a partial vehicular load. In accordance withASME PASE-2019 Load Sustaining Test: “A load not less than the rated capacity…shall not lower more than 1/8" (3.18mm) in the first minute, nor a total of .1875" (4.76mm) in 10 minutes.” Lowering within this range is considered normal operation and is NOT a warrantable defect.

1. Problem: Unit will not lift rated load.

Action: Purge air from hydraulic system following procedure under SETUP in your owner's manual.

2. Problem: Unit will not sustain rated load or feels "spongy" under rated load.

Action: Purge air from hydraulic system as above.

3. Problem: Unit will not lift to full height.

Action: Pump air from hydraulic system as above.

4. Problem: Handle tens to raise up while the unit is under rated load.

Action: Pump the handle rapidly several times to push oil past ball valves in power unit

5. Problem: Unit still does not operate.

Action: Contact SUNEX Customer Service