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The GrenPRO Allen Wrench Drill Bit Set offers 22 high-strength, phosphate-coated S2 steel hex bits designed for impact drivers and heavy screw driving. Featuring CNC machined tips, a torsion zone for torque absorption, and strong magnetic properties, this set delivers exceptional durability and precision for both Metric and SAE fasteners. Engineered for professionals and DIYers alike, it ensures reliable performance and extended bit life in a compact, quick-release 1/4" hex shank design.













| ASIN | B0DF7KRXWT |
| Best Sellers Rank | 701,570 in DIY & Tools ( See Top 100 in DIY & Tools ) 7,964 in Drill Bit Sets |
| Bit Compatibilities | Hex head bolts and screws |
| Brand | GRENPRO |
| Customer Reviews | 4.8 out of 5 stars 1,126 Reviews |
| Drive Bit Shank Style | Hex Shank |
| Drive System | Hex |
| Drive system | Hex |
| Finish | Phosphate Coated |
| Finish type | Phosphate Coated |
| Item Length | 2 Inches |
| Item length | 2 Inches |
| Manufacturer | GRENPRO |
| Material | Alloy Steel |
| Model Number | 071044 |
| Number of Pieces | 22 |
| Number of pieces | 22 |
| Part Number | 071044 |
| Set Name | Hex Bit Set, Allen Wrench Drill Bit Set |
| Unit Count | 22.0 count |
E**E
They look good
The quality looks good. Markings are clearly marked. All sizes received as advertised. I've not tested them yet but I think they will be strong. Happy with the purchase.
H**S
Very useful hex key set
Works well for my intended use, which is to build prefab furniture my wife is buying. Much better than using hex keys which I can only turn 180 degrees, if I'm lucky. I can just stick one of those into my 1/4" mini ratchet and tighten screws in seconds.
A**R
Disappointing. I would look elsewhere
My 4" bits arrives today. The bits appear of decent quality, but the case was broken, which is not surprising as it is of poor quality, just cheap clear plastic, it would not stand up to being carried in a tool bag. I also received 2 of 5/64 and no 7/64. Very disappointing
J**N
Great Bits!
These work amazingly well. If you need a set I would not hesitate at this price. I have beat these to death at work way beyond what they were probably intended to handle, and they just keep going. They worked so well at work that I bought myself a set. These are awesome.
B**N
Good Value
These have worked well so far and appear to be well made. The sizes are easy to read on both the bits and the holders, which is a small but convenient feature. The extended length comes in handy.
Trustpilot
5 days ago
2 weeks ago