Model#: SNXN9940

What are the different product conditions?

Brand new items;Full manufacturer warranty available
Manufacturer inspected, repaired and tested items; CPO 120 day money back guarantee
Open Box
New items with possible minor cosmetic damage; CPO 120 day money back guarantee
Returned items inspected, repaired and tested by CPO technicians; CPO 60 day money back guarantee

Sunex 9940 5-Piece SAE S-Style Double Box Wrench Set

  • Sunex 9940 5-Piece SAE S-Style Double Box Wrench Set
Out of Stock
Want an email when it's back in stock?


Sunex Tool's offers professionals some of the toughest, most reliable wrenches available on the market. Each wrench is forged from durable chrome vanadium (CR-V) alloy steel to provide maximum strength and service life. Available in SAE and metric size variations, Sunex has the wrench you need to get the job done.
  • Fully polished drop forged CR-V alloy steel for maximum strength and service life
  • Curved "s-style" design offers maximum access in confined, tighter spaces
  • Available in SAE and metric size variations to handle a variety of tasks
  • 5/16 in. x 3/8 in. S-Style Double Box Wrench - 994001
  • 7/16 in. x 1/2 in. S-Style Double Box Wrench - 994002
  • 9/16 in. x 19/32 in. S-Style Double Box Wrench - 994003
  • 5/8 in. x 11/16 in. S-Style Double Box Wrench - 994004
  • 11/16 in. x 3/4 in. S-Style Double Box Wrench - 994005
  • Canvas Pouch
Compliance and Restrictions
warning: This product can expose you to Nickel (Metallic), which is known to the State of California to cause Cancer. For more information go to


Material: CR-V Steel
Size: SAE
Type: S-Style Double Box



5.0 / 5.0
1 Review
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Would you recommend?
Yes (1)
Yes, I would recommend this to a friend
Works great for tough to reach bolts
The perfect wrench for hard to reach bolts. Worked great on removing the clutch slave cylinder on my MGB.
August 24, 2016

Questions & Answers

Start typing your question and we'll check if it was already asked and answered. Learn More
Browse 1 question Browse 1 question
Why do. Two. Wrenches have. 11/16?
A shopper on Jan 11, 2017


Sunex Warranty

Sunex® Tools Inc. Warrants to its customers that the company’s Sunex® Tools branded products are free from defects in workmanship and materials.

Sunex® Tools Inc. will repair or replace its Sunex® Tools branded products which fail to give satisfactory service due to defect in workmanship or materials, based upon the Terms and Conditions of the Warranty plans attributed to that specific product.

This Warranty does not cover damage to equipment or tools arising from alteration, abuse, misuse, damage and does not cover any repairs or replacement made by anyone other than Sunex® Tools or its Authorized Service Centers.

Return equipment or tools to Sunex® Tools or an Authorized Sunex® Warranty Center, SHIPPING PREPAID. Be certain to include your name, address and contact information, proof of purchase date, and a description of the suspected defect.

The foregoing obligation is Sunex® Tools’ sole liability under this or any implied warranty and under no circumstances shall Sunex® Tools be liable for any incidental or consequential damages.