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Hitachi

Hitachi 751916 Nut Driver Bit

A heavy-duty 34mm impact-rated nut driver bit built for demanding fastening jobs with 3/4" drive tools.

$28.45*
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*Price sourced from Amazon.com. Last updated:Jul 14, 2026.Price and availability are subject to change.

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Overview

The Hitachi 751916 Nut Driver Bit is a 34mm impact-rated socket designed for use with 3/4" drive impact wrenches and ratchets. Built to handle the high-torque demands of pneumatic and electric impact tools, this bit is suited for heavy construction, industrial maintenance, and automotive applications where 34mm hex fasteners are common. Its 57mm overall length strikes a balance between compactness and usability, providing enough reach for most standard bolt placements while remaining short enough to work in moderately confined spaces.

As an impact-rated socket (designated as a "Krachtdop"), the 751916 is manufactured to absorb repeated high-force impacts without fracturing — an essential safety characteristic that distinguishes it from standard chrome sockets, which can shatter under impact wrench use. For professionals and tradespeople who regularly work with large-diameter fasteners, this Hitachi bit is a reliable, purpose-built tool for the job.

Key Features

Hitachi 751916 Krachtdop - 34mm - 3/4" (L=57mm)

Specifications

Socket Size
34mm
Drive Size
3/4" (19mm)
Overall Length
57mm
Type
Impact Nut Driver Bit (Krachtdop)
Brand
Hitachi
Model
751916

Pros & Cons

👍 Pros

  • 34mm size handles large-diameter fasteners used in heavy industrial and automotive work
  • Impact-rated construction withstands high-torque power tool use without cracking
  • Compact 57mm length allows access in tighter spaces compared to longer sockets
  • Standard 3/4" drive fits widely available impact wrenches and ratchets

👎 Cons

  • 3/4" drive requirement means a large, heavy impact wrench is needed — not suitable for lighter tools
  • Single-size bit requires purchasing additional sizes separately for varied fastening work
  • Compact 57mm length may limit reach in deeply recessed bolt applications
  • Limited product documentation available regarding material composition and hardness rating

Frequently Asked Questions

This nut driver bit is sized at 34mm, designed for use on 34mm hex-head bolts and nuts commonly found in heavy construction, industrial equipment, and automotive applications.
The Hitachi 751916 uses a 3/4" (19mm) square drive, which is compatible with 3/4" impact wrenches and ratchets.
The bit measures 57mm (approximately 2.25 inches) in total length.
Yes, this is a power socket (Krachtdop) designed to withstand the high torque and repeated impacts of pneumatic and electric impact wrenches.

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