Blulu 9/16"(14mm) Power Nut Driver, Nut Runner Hollow Socket with
- Screwdriver
- 1
- 13.3 ounces
A single-size 9/16 inch (14mm) hollow socket nut driver that speeds up repetitive nut-running with a drill, worth it only if your fasteners match that exact size.
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How it ranks among the 158 screwdrivers we track
4.2★ across 331 Amazon ratings, Bayesian-smoothed toward the category average.
331 Amazon ratings, weighted on a log scale so huge counts don't drown everything.
300+ bought on Amazon last month.
Brand identity, imagery, description and spec coverage.
The ProductDome score is separate from the Amazon rating shown above: it combines the Bayesian-smoothed Amazon rating with evidence volume, tracked demand, and data quality across the 158 screwdrivers we track - how the scorecard works · full screwdrivers data report. Confidence: medium - useful but incomplete evidence.Last refreshed Aug 4, 2026. Data-computed, not a hands-on test. Compiled by the ProductDome Research Team.
Overview
This Blulu nut driver is a 9/16 inch (14mm) hollow socket bit designed to run nuts and bolts with a power drill, sold as a single piece weighing 13.28 ounces. The hollow socket lets it pass over a protruding bolt shaft while driving the nut.
Nut drivers like this one turn a standard drill into a faster tool for repetitive nut-running work, replacing a hand wrench on jobs like fencing, decking or general assembly. The hollow socket design specifically is what lets it slide over a bolt end rather than needing a flush nut. At 9/16 inch (14mm), it fits a specific nut size, so checking the fastener size on hand matters before ordering.
- 9/16 inch (14mm) size
- Hollow socket design
- 13.28 ounce weight
- Fits standard power drills
Who it's for
Useful for anyone running a lot of 9/16 inch or 14mm nuts by drill rather than by hand, such as on fencing, decking or general assembly work. Not useful if your fasteners are a different size, since it fits one size only.
Strengths and trade-offs
Drawn from this product's published specifications.
- Hollow socket clears protruding bolt shafts
- Speeds up repetitive nut-running versus a hand wrench
- Light at 13.28 ounces
- Fits one nut size only (9/16 inch / 14mm)
- Sold as a single piece, no size assortment
Performance notes
Driving nuts with a drill instead of a hand wrench speeds up repetitive fastening work considerably, and the hollow socket design lets it pass over a protruding bolt shaft rather than requiring a flush-cut bolt. At 13.28 ounces, it is light enough to keep in a drill's chuck without adding noticeable weight.
Specifications
| Brand | Blulu |
|---|---|
| Pieces | 1 |
| Item Weight | 13.3 ounces |
How it compares
This product against the closest alternatives we track in screwdrivers.
| Product | Amazon rating | Ratings | ProductDome score |
|---|---|---|---|
| Blulu 9/16"(14mm) Power Nut Driver, Nut Runner Hollow Socket withThis product | 4.2 / 5 | 331 | 3.8 / 5 |
| JOREST 40Pcs Small Precision Screwdriver Set with Torx Triwing PhillipsJOREST | 4.7 / 5 | 25,021 | 4.6 / 5 |
| Klein 32581 ScrewdriverKLEIN | 4.8 / 5 | 19,106 | 4.7 / 5 |
| Amartisan wwer ScrewdriverAmartisan | 4.6 / 5 | 12,513 | 4.6 / 5 |
| AXTH 25-IN-1 ScrewdriverAXTH | 4.6 / 5 | 4,763 | 4.5 / 5 |
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Questions about the Blulu screwdrivers
Common buyer questions answered straight from the product spec data - no fluff, no "it depends".
What size nuts does the Blulu nut driver fit?
9/16 inch, equivalent to 14mm.
Does the Blulu nut driver work with a standard drill?
Yes, it is designed to run on a power drill rather than by hand.
Why is the socket hollow?
The hollow design lets it pass over a bolt shaft that protrudes past the nut, rather than requiring a flush end.