GRENPRO 22 Piece Allen Wrench Set Review
A 22 piece hex key set from GRENPRO combining a 9-piece metric range and a 13-piece SAE range, color coded sizing, a magnetic tip and a folding storage rack.
| Brand | GRENPRO |
|---|---|
| Piece count | 22 keys total |
| Metric range | 9 keys, 1.5 to 10mm |
| SAE range | 13 keys, 0.05 to 7/32 inch |
| Hardness | Up to HRC62 |
| Material | Treated alloy steel |
| Best for | Buyers who want one case covering both common metric and SAE hex sizes for bike and household repairs |
Product Overview
This is a combined metric and SAE hex key set aimed at bike maintenance, automotive repair, DIY assembly and household appliance work. The 9 metric keys run 1.5, 2, 2.5, 3, 4, 5, 6, 8 and 10mm, while the 13 SAE keys run 1/16, 5/64, 3/32, 1/8, 5/32, 3/16, 1/4, 5/16, 3/8, 0.05, 7/64, 9/64 and 7/32 inch, for 22 keys total.
Every key is labelled with its size on the surface and the set stores in a folding rack that also carries size markings, so individual keys can be identified and returned to their slot.
Score Breakdown
This verdict is based on the manufacturer's stated specifications, the current Amazon listing and its product images, the confirmed materials and design, real buyer ratings, and our research into the product category. Scores are consistent editorial judgments, not laboratory measurements, and we did not receive a paid sample.
Key Features
9 metric keys from 1.5 to 10mm plus 13 SAE keys from 0.05 to 7/32 inch.
Forged and heat treated for durability under repeated torque.
Listed as thicker than ordinary hex keys for added strength.
Magnetization-demagnetization design helps hold screws during installation.
Labelled slots keep all 22 color coded keys organized by size.
Design and Build Quality
Keys are forged from treated alloy steel with a listed hardness of up to HRC62, which GRENPRO states makes them resistant to twisting under load. The listing describes the keys as 15 percent thicker than ordinary hex keys, aimed at handling higher torque without deforming.
A magnetic tip design uses magnetization and demagnetization to hold screws in place during installation, intended to stop fasteners from dropping into tight spaces. Each key is color coded for faster size identification, and the set weighs about 2.96 pounds including the folding storage rack.
Performance in Everyday Use
The long arm, ball head design is built to extend reach and leverage, with the ball end allowing an entry angle of up to 25 degrees so the key can work around obstructions rather than needing a straight approach to the fastener. GRENPRO positions this set for automotive repairs, DIY projects and household appliance repairs as well as bike maintenance.
The folding rack keeps all 22 keys in size order with markings on the rack itself, which keeps the set organized for repeat use rather than loose in a drawer.
How It Performs: The Evidence
| Decision factor | What we found | Evidence and measurement | Score | Why it matters |
|---|---|---|---|---|
| Total key count | 22 keys | Listing states a 9-piece metric set and a 13-piece SAE set for 22 keys total | 8.5 | A named piece count confirms the breadth of size coverage |
| Metric size range | 1.5mm to 10mm, 9 sizes | Listing states 1.5, 2, 2.5, 3, 4, 5, 6, 8, 10mm metric keys | 8.4 | Named metric sizes confirm which fasteners the set reaches |
| SAE size range | 0.05 to 7/32 inch, 13 sizes | Listing states 1/16 through 7/32 inch SAE keys including a 0.05 inch size | 8.3 | Named SAE sizes confirm coverage beyond metric-only sets |
| Hardness rating | Up to HRC62 | Listing states hardness of up to HRC62 on treated alloy steel | 8.2 | A named hardness figure gives a checkable durability benchmark |
| Thickness increase | 15 percent thicker | Listing states the keys are 15 percent thicker than ordinary hex keys | 7.9 | A named percentage confirms the thickness claim is measurable, not vague |
| Reach angle | Up to 25 degrees entry angle | Listing states the ball-end design allows an entry angle of up to 25 degrees | 8.0 | A named angle confirms how far off-axis the key can still engage a fastener |
| Set weight | About 2.96 pounds | Listed weight is 2.95639893342 pounds | 7.6 | A named weight confirms the set including its storage rack |
Who Should Buy It
- Bicycle assembly and repair across common metric sizes
- Automotive and DIY projects needing both metric and SAE hex keys
- Household appliance repair in tight spaces thanks to the ball-end reach
- Buyers who want screws to stay on the key tip via the magnetic design
- Organized storage of a full hex key range in one folding rack
- Buyers needing hex sizes larger than 10mm metric or beyond the listed SAE range, or who prefer a single ratcheting handle over individual keys
- Metric range tops out at 10mm and SAE at 7/32 inch, so larger fasteners need another set
- Individual L-shaped keys rather than a single ratcheting handle, which is slower on repetitive work
- Ball-end design trades some torque capacity for the extended reach angle
- Color coding depends on being able to see the colors clearly in low light
Full Specifications
How It Compares
| Feature | GRENPRO | Typical option | Higher-tier option |
|---|---|---|---|
| Size system | Metric and SAE in one set | Single size system only | Metric and SAE combined |
| Piece count | 22 keys total | Fewer keys, narrower range | Comparable 20 plus piece range |
| Hardness rating | Up to HRC62 | No stated hardness | Named hardness rating |
| Tip design | Magnetic ball-end | Plain straight tip | Magnetic tip feature |
| Thickness | 15 percent thicker per listing | Standard key thickness | Thickened key profile |
| Storage | Folding rack with size labels | Loose keys, no case | Folding case included |
Alternatives Worth a Look
GRENPRO's 22 piece set covers a wide metric and SAE hex range in one magnetic, color coded, HRC62-rated case with a folding storage rack. It suits buyers who want broad small-to-mid size coverage for bike and household repair in a single kit, with the main limit being that sizes top out at 10mm metric and 7/32 inch SAE.
Frequently Asked Questions
What sizes are included in this set?
9 metric keys from 1.5 to 10mm and 13 SAE keys from 0.05 to 7/32 inch, 22 keys total.
What material are the keys made from?
Treated alloy steel rated up to HRC62 hardness, per the listing.
Do the keys have a magnetic tip?
Yes, a magnetization-demagnetization design is built in to help hold screws in place.
How are the keys organized?
In a folding storage rack with size markings and color coding per key.
How much does the set weigh?
About 2.96 pounds, per the listing.
Are the keys thicker than standard hex keys?
The listing states they are 15 percent thicker than ordinary hex keys.
What is the largest size in this set?
10mm on the metric side and 7/32 inch on the SAE side.
This review is based on GRENPRO's stated materials, size range, hardness rating and dimensions for this listing. It is editorial analysis of the specifications and features as described, not independent torque or wear testing of this specific set.