US
Blulu

Blulu Hollow Power Nut Driver 9/16 Inch

  • Head Style: Hex
  • Material Type: Metal
  • Item Weight: 0.83 pounds
  • Color: Black

Last refreshed Aug 4, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.

Our verdict

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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ASIN: B0CVVSG5FTCategory: Screwdrivers

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.

Pros and cons

Pros
  • Hollow socket clears protruding bolt shafts
  • Speeds up repetitive nut-running versus a hand wrench
  • Light at 13.28 ounces
Cons
  • 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

BrandBlulu
Dimensions & fit
Item Weight0.83 poundshigher than 87% of 112 screwdrivers
Head Size9/16"(14mm)
Construction & materials
Material TypeMetal
ColorBlack
Included components
Unit Count1
Other details
Head StyleHex
Number Of Items1
Special FeatureHollow Socket

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Frequently asked questions

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.