Sunex Jumbo Wrench Set Guide: SAE, Metric, Crowfoot or Angled?
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Sunex Tools is a name many professional mechanics know for heavy-duty hand tools and impact sockets, and its jumbo wrench sets are built for the big fasteners that ordinary toolboxes skip. Think truck suspension parts, farm equipment, heavy machinery and large pipe fittings, where a nut can be two inches across. If you are shopping for a mechanic, a farmer or a serious home DIYer, a Sunex jumbo wrench set is a practical gift that fills a real gap in their tools.
The six sets below differ in one sentence: the 9707 and 9707M are standard jumbo combination wrenches in SAE and metric, the 9604 goes even bigger in SAE, the 9721 is a crowfoot set that attaches to a ratchet, and the 9916 and 9927 are angled open-end wrenches for awkward spots.
Sunex Jumbo Wrench Sets Compared
| Set | Measurement | Pieces | Size Range | Storage |
|---|---|---|---|---|
| 9707 Jumbo Fractional Combination | SAE | 7 | 1-5/16″ to 2″ | Roll-case / canvas pouch |
| 9707M Jumbo Metric Combination | Metric | 7 | 33mm to 50mm | Roll-case / canvas pouch |
| 9604 Super Jumbo SAE | SAE | 4 | 2-1/8″ to 2-1/2″ | Not listed |
| 9721 1/2″ Drive Crowfoot | SAE | 14 | 1-1/16″ to 1-3/8″ | Storage rail |
| 9916 Angled Head Raised Panel | SAE | 6 | 1-3/8″ to 2″ | Metal clips |
| 9927 Jumbo Metric Angled | Metric | 7 | 26mm to 29mm (as listed) | Canvas pouch |
Sunex Tools 9707 Jumbo Fractional Combination for Big SAE Fasteners
Sunex Tools
Sunex Tools 9707 Jumbo Fractional Combination Wrench Set, 7Piece (Includes Roll-Case), SAE Jumbo Combination Wrench Set
Price and specifications are read from the Amazon product page and can change.
Sunex Tools 9707 Jumbo Fractional Combination
Best for: Mechanics working on large SAE fasteners
Pros
- 1-5/16 to 2 inch sizes
- Radius corners reduce round-off
- Sizes stamped on both sides
- Roll-case included
Cons
- Listed as heavy at 21.2 pounds
- Steel type described inconsistently
The Sunex Tools 9707 Jumbo Fractional Combination set is the natural starting point. “Fractional” means SAE, the inch-based sizing used on many American trucks, trailers and equipment. A combination wrench has an open end on one side and a closed box end on the other, so you can use the open end to get onto a nut quickly and the box end when you need more grip. This set covers 1-5/16″ to 2″ across seven wrenches, and the listing gives a length of 12 inches for the set.
The features explain how the wrenches are built. Radius corners grip the flat sides of a nut instead of its corners, which helps prevent rounding. The raised panel design, a thicker ridge down the handle, cuts weight while keeping strength. Chrome plating resists rust and corrosion, sizes are stamped on both sides, and the wrenches are heat treated to meet or exceed ANSI strength standards. A canvas roll-case is included. The listing is inconsistent on the steel: one feature says chrome vanadium, while the description says CR-MO alloy steel. The description mentions a lifetime warranty. The listed weight is 21.2 pounds, which is much heavier than the metric twin, so treat that figure with some caution.
This is the right gift for a mechanic who works on SAE equipment and lacks sizes above 1-1/4″. If their work is mostly on metric machines, choose the 9707M instead.
Sunex Tools 9707M Jumbo Metric Combination for Metric Equipment
Sunex Tools
Sunex Tools 9707M Jumbo Metric Combination Wrench Set, 7Piece (Includes Roll-Case)
Price and specifications are read from the Amazon product page and can change.
Sunex Tools 9707M Jumbo Metric Combination
Best for: Large metric fasteners on equipment
Pros
- 33mm to 50mm sizes
- Raised panel design
- Chrome plating against rust
- Roll-case included
Cons
- Metric only
- Steel type described inconsistently
The Sunex Tools 9707M Jumbo Metric Combination set is the metric version of the 9707. Metric sizes are measured in millimeters and are common on European and Asian vehicles and machinery. This set runs from 33mm to 50mm in seven pieces, with the same combination design.
Its feature list matches the SAE set: radius corners to reduce round-off, raised panel handles, chrome plating, sizes stamped on both sides, ANSI-standard heat treatment and a canvas pouch. The same inconsistency appears here, with chrome vanadium in the features and CR-MO in the description. The listing gives a weight of 6 pounds and mentions a lifetime warranty.
Pick this for someone who works on metric tractors, imported trucks or industrial machines. If you are unsure which system they use, look at the fasteners on their equipment or the wrenches they already own.
SUNEX TOOLS 9604 Super Jumbo SAE for the Largest Nuts
Sunex Tools
SUNEX TOOLS 9604 Super Jumbo SAE Combination Wrench Set, 4-Piece, Silver
Price and specifications are read from the Amazon product page and can change.
SUNEX TOOLS 9604 Super Jumbo SAE
Best for: Oversized SAE nuts beyond 2 inches
Pros
- 2-1/8 to 2-1/2 inch sizes
- Chrome molybdenum steel
- Lifetime warranty
Cons
- Only four wrenches
- No storage case listed
The SUNEX TOOLS 9604 Super Jumbo SAE set picks up where the 9707 stops. It includes four combination wrenches in 2-1/8″, 2-1/4″, 2-3/8″ and 2-1/2″. These are sizes you meet on very heavy equipment, large pipe fittings and industrial bolts.
The listing describes chrome molybdenum (CR-MO) alloy steel for long life and a lifetime warranty. It does not mention a case or pouch. Some specs look like listing errors, such as an item weight of 13.61 grams and a length of 2.5 inches, which cannot describe wrenches this size, so rely on the size list rather than those numbers.
This set is for someone who already owns jumbo wrenches up to 2″ and needs the next step up. For most home garages, the 9707 covers more everyday sizes.
SUNEX TOOLS 9721 1/2″ Drive Crowfoot Set for Tight Spaces
Sunex Tools
SUNEX TOOLS 9721 1/2" Drive Fractional Jumbo Straight Crowfoot Wrench Set, 14-Piece
Price and specifications are read from the Amazon product page and can change.
SUNEX TOOLS 9721 1 2″ Drive
Best for: Torque wrench users in tight spaces
Pros
- Fits 1/2 inch drive tools
- 14 pieces, 1-1/16 to 1-3/8 inch
- Storage rail included
- Sizes stamped on both sides
Cons
- Needs a separate ratchet or torque wrench
The SUNEX TOOLS 9721 1/2″ Drive Fractional Jumbo Straight Crowfoot Wrench Set works differently from the others. A crowfoot wrench is a wrench head without a handle. It has a square hole that fits onto a 1/2″ drive ratchet, extension or torque wrench. That lets you reach nuts where a long handle will not fit, or tighten a large line nut to a measured torque.
The set has 14 pieces from 1-1/16″ to 1-3/8″, sizes stamped on both sides, chrome plating, ANSI-standard heat treatment and chrome vanadium steel. A storage rail is included to keep the pieces in order.
This suits a mechanic who already owns a 1/2″ drive ratchet or torque wrench. It is not a standalone set, so someone without drive tools would be better served by the 9707. Many owners pair crowfoots with sockets, and our Sunex 3/8 impact socket set guide covers that side of the toolbox.
SUNEX TOOLS 9916 Fractional Angled Head for Awkward SAE Jobs
Best for: Reaching big SAE nuts at awkward angles
Pros
- 15 and 60 degree angled ends
- 1-3/8 to 2 inch sizes
- Metal storage clips
- Lifetime warranty
Cons
- Open-end only design
The SUNEX TOOLS 9916 Fractional Angled Head set is a six-piece jumbo raised panel wrench set from 1-3/8″ to 2″. Its ends are angled at 15 degrees and 60 degrees. Those angles let you flip the wrench and catch the nut at a new position when there is little room to swing, which is common near frames and engine parts.
The listing says the wrenches are forged from fine-grade alloy steel, come with metal storage clips and carry a lifetime warranty. It gives a 2″ jaw capacity and a 12-inch length. The listing does not describe a box end, so treat these as open-end angled wrenches.
It suits a mechanic who already has combination wrenches and keeps running out of swing room. For a first jumbo set, the 9707 is more versatile.
SUNEX TOOLS 9927 Jumbo Metric Angeled for Metric Angled Work
Best for: Metric angled work in the 26-29mm range
Pros
- 15 and 60 degree angled ends
- Canvas pouch included
- CR-MO alloy steel
Cons
- Narrow 26-29mm size range
- Piece count unclear for that range
The SUNEX TOOLS 9927 Jumbo Metric Angeled set brings the angled design to metric sizes. It shares the 15 and 60 degree angled ends and comes with a heavy-duty canvas pouch. The description mentions CR-MO alloy steel and a lifetime warranty.
The listing is confusing on sizes. The title says 26mm to 29mm and 7 pieces, and the jaw capacity is listed as 26 millimeters. Seven pieces within a 3mm range seems unusual, so the listing does not clearly specify which sizes are included. Check the product page or images before buying, especially as a gift.
This is the metric partner to the 9916. If the person you are buying for works on metric machinery and needs angled access, it fits; if not, the 9707M covers a wider metric range.
How to Choose the Right Sunex Jumbo Wrench Set
Start with SAE versus metric. SAE sizes are in inches and fractions (1-5/16″, 2″), while metric sizes are in millimeters (33mm, 50mm). Look at the equipment the person works on, or check what sizes are stamped on their current wrenches. The 9707, 9604, 9721 and 9916 are SAE; the 9707M and 9927 are metric.
Next, pick the wrench style. Combination wrenches (9707, 9707M, 9604) are the all-rounders. Crowfoot wrenches (9721) need a ratchet or torque wrench and shine in tight spaces. Angled wrenches (9916, 9927) help when there is little room to swing.
Then think about sizes they already own. Most basic toolboxes stop around 1″ or 1-1/4″. The 9707 is the logical next set, and the 9604 is for someone who already goes to 2″. If the gift is for someone building out a full kit, a good hex key set is another piece many mechanics lack.
Finally, consider storage. Roll-cases and pouches (9707, 9707M, 9927) travel well, while a rail (9721) or clips (9916) suit a toolbox drawer.
FAQ
What does jumbo mean on a Sunex wrench set?
It refers to oversized wrenches for large fasteners. The 9707 covers 1-5/16″ to 2″, the 9707M covers 33mm to 50mm, and the 9604 goes up to 2-1/2″.
Should I buy SAE or metric?
Match the equipment. Inch-based fasteners need SAE sets like the 9707, and millimeter fasteners need metric sets like the 9707M. Guessing wrong means the wrench will not fit properly.
What is a crowfoot wrench used for?
It is a wrench head that attaches to a ratchet, extension or torque wrench. The 9721 fits 1/2″ drive tools and helps reach nuts in tight spaces or tighten them to a set torque.
What does raised panel mean?
It describes a thicker ridge along the handle. Sunex says the raised panel design on the 9707 sets reduces weight while keeping strength.
Do Sunex jumbo wrench sets have a warranty?
The 9707, 9707M, 9604, 9916 and 9927 listings mention a lifetime warranty. The 9721 listing does not specify one.
Which Sunex wrench set should I buy for a mechanic?
The 9707 SAE set is the most versatile first jumbo set for American equipment, and the 9707M is its metric twin. Choose the crowfoot or angled sets only if they already own combination wrenches in those sizes.
