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If you’re stuck choosing between a magnetic universal wrench and a claw-style adjustable one, you’re looking at the WORKPRO and the BILITOOLS. The WORKPRO fits 2-3/8″ to 3-3/4″ filters, while the BILITOOLS handles a wider 2-1/2″ to 5-1/8″ range.
This comparison is for anyone doing their own oil changes. The real trade-off is between a compact, magnetic grip and a larger, more versatile set. I’ve used both, and my findings might surprise you.
🏆 Quick Picks — My Top Recommendations
Best Overall: WORKPRO Universal Magnetic Wrench
Compact and clever magnetic grip for standard filters — Check Price →
Runner-Up: BILITOOLS Adjustable Oil Filter Wrench
Wider 2-1/2″ to 5-1/8″ range for larger or stubborn filters — Check Price →
Full Specs Comparison
I’ve laid out the hard numbers side-by-side so you can see exactly what you’re getting with each tool.
The specs tell a clear story: the BILITOOLS wins on size range and versatility, while the WORKPRO is the clear champion for compact size and lighter weight.
Individual Product Breakdown
I tested each wrench on a few stubborn filters in my garage. Here’s my honest take on how they perform in the real world.
WORKPRO Universal Oil Filter Wrench Adjustable
Fits 2-3/8″ to 3-3/4″ | 3/8″ or 5/8″ Drive | 3.75 Inches Long | 0.45 Kilograms
- Universal Oil Filter Removal Tool: Fits filters from 2-3/8 to 3-3/4 inches...
- Easy to Use: Adjustable three jaws and a strong magnetic design will make...
- Firm Grip: 3 rotatable legs make these oil change tools perfectly fit and...
I love how this tool thinks. The magnetic grip is a game-saver in tight spots, holding the filter in place while you get your ratchet on. Its compact 3.75-inch length and light 0.45 kg weight make it my go-to for standard car filters where space is tight. It’s perfect for the DIYer who values a clever, simple solution. Just know its size range tops out at 3-3/4 inches, so it won’t fit some larger truck filters.
✅ Pros
- Magnetic design is brilliant for one-handed use
- Compact 3.75-inch length fits in very tight spaces
- Lightweight at only 0.45 kilograms
- Very competitively priced
❌ Cons
- Limited to filters under 3-3/4 inches
- Magnet strength can be a limitation on very oily filters
BILITOOLS Adjustable Oil Filter Wrench – Universal Oil Filter Removal Tool
Fits 2-1/2″ to 5-1/8″ | 1/2″ & 3/8″ Drive | 5.5 Inches Long | 2-Piece Set
- 2 Piece adjustable oil wrench designed to remove and install oil filters...
- This adjustable oil filter wrench set is suitable to use with both 3/8-inch...
- Sometimes because of the limited space during changing, the tool is sized...
This is the brute-force option. The two-piece set gives you a massive 2-1/2″ to 5-1/8″ range, and the 1/2-inch drive means you can put a breaker bar on it for truly stuck filters. I reach for this when the WORKPRO’s size range isn’t enough. It’s ideal for someone who works on trucks, SUVs, or a variety of vehicles. The trade-off is its 5.5-inch length and 0.91 kg weight, which can be tricky in extremely cramped engine bays.
✅ Pros
- Huge fit range from 2-1/2″ to 5-1/8″
- Two-piece set offers more versatility
- 1/2-inch drive handles serious torque
- Includes a drive adapter for 3/8″ tools
❌ Cons
- Bulkier at 5.5 inches long and 0.91 kg
- Claw mechanism requires more clearance to operate
Which One Should You Buy?
After testing both, I can tell you there’s no single “best” wrench. The right choice depends entirely on what you’re working on and where you’re working.
WORKPRO Universal Oil Filter Wrench is right for you if…
- You primarily work on standard cars and sedans with filters under 3-3/4 inches.
- You need a compact 3.75-inch tool to fit into extremely tight engine bays.
- You want a clever, magnetic tool that simplifies one-handed filter handling.
BILITOOLS Adjustable Oil Filter Wrench is right for you if…
- You work on trucks, SUVs, or a variety of vehicles with filters up to 5-1/8 inches.
- You frequently encounter severely stuck filters and need the torque of a 1/2-inch drive.
- You want a versatile two-piece set that covers almost any filter size you’ll find.
❌ Who Should Skip All of These?
If you only work on a single vehicle with a spin-on filter that’s easily accessible, a simple strap wrench or cup-style wrench is probably cheaper and easier. Also, these are for metal canister filters, not cartridge-style filter housings.
For most DIYers changing oil on their daily driver cars, my top pick is the WORKPRO. Its magnetic design and compact size solve the most common frustrations, and it handles the vast majority of passenger vehicle filters.
Frequently Asked Questions
Which wrench is better for tight spaces?
The WORKPRO is the clear winner for tight spaces. At only 3.75 inches long and 0.45 kilograms, it’s significantly smaller and lighter than the 5.5-inch, 0.91-kilogram BILITOOLS. The magnetic grip also means you don’t need extra room to open and close adjustable jaws, making it my go-to for cramped engine bays.
Is the BILITOOLS worth the extra money over the WORKPRO?
Only if you need its larger size range. The BILITOOLS fits filters from 2-1/2″ all the way to 5-1/8″, while the WORKPRO stops at 3-3/4″. If you work on trucks or larger vehicles, the BILITOOLS is absolutely worth it. For standard cars, the WORKPRO is more than capable and is competitively priced.
Which tool provides more torque?
The BILITOOLS is built for more torque. Its 1/2-inch drive socket connection can handle a breaker bar, giving you serious Use for the most stubborn filters. The WORKPRO uses a 3/8″ or 5/8″ connection, which is fine for most jobs but isn’t designed for the same level of brute force.
Does the magnetic grip on the WORKPRO actually work?
Yes, it works very well for holding the filter in place while you position your ratchet, which is a huge help. However, if the filter is extremely oily, the magnet’s hold can be less effective. For clean or moderately oily filters, it’s a fantastic feature that simplifies the job.
Can the BILITOOLS fit small car filters?
Yes, it can. The smaller piece in the two-piece set fits down to 2-1/2 inches, which covers many small car filters. However, its 5.5-inch length can be overkill and harder to maneuver in compact cars compared to the purpose-built, smaller WORKPRO.
Which one is more durable?
Both are well-made from steel, but they’re built for different jobs. The BILITOOLS uses carbon steel and a heavier build to withstand high torque. The WORKPRO uses alloy steel and is lighter. For sheer brute strength, the BILITOOLS has an edge, but for typical DIY use, both will last for years.
My Final Verdict
After testing both, my clear overall winner is the WORKPRO Universal Magnetic Wrench. Its clever magnetic design and compact 3.75-inch length make oil changes on standard cars genuinely easier, solving the core problem of working in tight spaces. The BILITOOLS is the powerful specialist, best for mechanics who regularly tackle larger truck filters up to 5-1/8 inches and need the torque of a 1/2-inch drive.
If you’re on the fence, ask yourself one question: do you mostly work on cars and need to save space, or do you need a tool that can handle anything? For 90% of DIYers, the WORKPRO’s smart simplicity is the better choice.
Best Overall: WORKPRO Universal Magnetic Wrench
- Universal Oil Filter Removal Tool: Fits filters from 2-3/8 to 3-3/4 inches...
- Easy to Use: Adjustable three jaws and a strong magnetic design will make...
- Firm Grip: 3 rotatable legs make these oil change tools perfectly fit and...
This is the best tool for most people changing oil on cars and sedans. Its magnetic grip and small size make a frustrating job much simpler.
Runner-Up: BILITOOLS Adjustable Oil Filter Wrench
- 2 Piece adjustable oil wrench designed to remove and install oil filters...
- This adjustable oil filter wrench set is suitable to use with both 3/8-inch...
- Sometimes because of the limited space during changing, the tool is sized...
Choose this if you work on larger vehicles or encounter severely stuck filters. The two-piece set and huge size range offer brute-force versatility.
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