Klein Tools

Model # 631SEN

Internet # 100341458

Store SKU # 576337

7-Piece Nut Driver Set

$52.47 /each

Frequently Bought Together

Product Overview

The Klein Tools, Inc. 7-Piece Nut Driver Set is designed to work well on stacked circuit boards and other long-bolt applications. Its 7 nut drivers are some of the most frequently used hex sizes. They are plated with corrosion-resistant chrome for strength and endurance. Their internal flanges provide twist-resistant shaft anchors for the full-hollow shafts, and their handles are color coded for easy identification.

California residents: see  Proposition 65 information

  • Shaft is plated with corrosion-resistant chrome for durability
  • Hollow shaft works on stacked circuit boards and other long-bolt applications
  • Tip-ident quickly identifies nut driver and size
  • Cushion-grip handle allows for greater torque and comfort
  • Set includes 3/16, 1/4, 5/16, 11/32, 3/8, 7/16 and 1/2 in. hex sizes
  • Handle end is color coded for easy identification
  • Designed for use over long bolts and studs
  • Internal flanges provide twist-resistant shaft anchor
  • Made in the USA
  • Note: product may vary by store



Handle Length (in.) 
Product Depth (in.) 
Product Height (in.) 
Product Width (in.) 
Shaft length (in.) 


Color Family 
Drive Type 
Hand Tool Type 
Nut Driver Set 
Handle Material 
Measurement Standard 
Number of Pieces 
Tools Product Type 
Hand Tool 

Warranty / Certifications

Manufacturer Warranty 
Klein products, manufactured and sold for commercial or industrial uses, are warranted to be free from defects in materials and workmanship for the normal life of the product. 

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Customer Questions & Answers

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Customer Reviews

Rated 5.0 out of 5 by 3 reviewers.
Rated 5.0 out of 5.0 by Better than anticipated I purchased the Klein Tools 7-piece nut driver set for work. I have to admit that it outperforms my expectations daily. The solid feel of the handle and positive grip on the fasteners, lets you know that you have a great product and a trustworthy tool. October 4, 2015
Rated 5.0 out of 5.0 by Long lasting tools A bit pricey when compared to the greenlee set but well worth it. I purchased this set a couple months ago a use them about 3 times a week. They haven't let me down and I don't think they will. The grip hand are made to last decades of use. I only wish I purshesed the 6" shaft set instead to reach those hard to get places but otherwise they are pretty darn good tools. July 22, 2013
Rated 5.0 out of 5.0 by Klein Nut Driver Set This is a wonderful nut driver set. I got them for my husband who is an electrician and he likes the cushion grip. I would highly recommend this set to anyone. December 28, 2007
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