Genius Tools Master Tool Set 771 Piece Metric and SAE 1/4 Inch, 3/8 Inch, 1/2 Inch Drive Comprehensive Mechanics Kit - MS-771

$3,935.62
sku
MS-771
Free Shipping Banner
  • Genius Tools MS-771 is a 771-piece master tool set with Metric and SAE coverage for a wide range of fastener sizes.
  • Includes 1/4", 3/8", and 1/2" drive tools, helping match the drive size to different sockets, fasteners, and service tasks.
  • Standard and deep sockets provide options for varied bolt positions, recessed fasteners, and longer stud lengths when selecting the right socket profile.
  • Extensions and swivel options improve access to confined or awkward fastener locations where a straight socket approach may not fit.
  • This comprehensive mechanics kit meets or exceeds ANSI standards and is backed by a limited lifetime warranty for added purchase confidence.
What's in This Set (64) Each piece is also sold separately Show all 64 pieces Hide pieces

Genius Tools Master Tool Set 771 Piece Metric and SAE 1/4 Inch, 3/8 Inch, 1/2 Inch Drive Comprehensive Mechanics Kit - MS-771 Professional Mechanics Tool Set

SKU: MS-771. This 771-piece master tool set combines Metric and SAE coverage across 1/4", 3/8", and 1/2" drive sizes. It’s built to support a wide range of mechanical fastening tasks with a coordinated mix of sockets, extensions, and specialty drive tools.

The assortment is organized as a single comprehensive kit so you can move between drive sizes and fastener styles without piecing together separate sets. The selection includes standard and deep sockets, impact-focused components, and specialty hand-socket profiles for additional fitment options.

Key Benefits

  • 771-piece assortment reduces gaps between common Metric and SAE fastener sizes.
  • Includes 1/4", 3/8", and 1/2" drive tools for broad coverage.
  • Mix of standard and deep sockets supports varied bolt and stud lengths.
  • Impact-oriented socket sets and joints expand compatibility with impact use.
  • Extension and swivel options help reach fasteners in confined locations.
  • Meets or exceeds American National Standards Institute (ANSI) standards.
  • Backed by Genius Tools Limited Lifetime Warranty against manufacturer defects.

What’s Included

  • TF-255MS 55 1/4" Dr. 6 & 12pt. Std./Deep Metric & SAE Impact Socket Set
  • 700107 1 3/8" Dr. Impact Universal Joint
  • TG-308S 8 3/8" Dr. 6pt. Std. SAE Swivel Impact Socket Set
  • TG-312M 12 3/8" Dr. 6pt. Std. Metric Swivel Impact Socket Set
  • 700108 1 1/2" Dr. Impact Universal Joint
  • IE-2349 9 1/4",3/8" & 1/2" Dr. Impact Extension Set
  • CM-326S 26 3/8" Dr. 6pt. Std./Deep SAE Impact Socket Set
  • CM-332M 32 3/8" Dr. 6pt. Std./Deep Metric Impact Socket Set
  • IS-422S 22 1/2" Dr. 6pt. Std. SAE Impact Socket Set
  • DI-422S 22 1/2" Dr. 6pt. Deep SAE Impact Socket Set
  • IS-425M 25 1/2" Dr. 6pt. Std. Metric Impact Socket Set
  • DI-425M 25 1/2" Dr. 6pt. Deep Metric Impact Socket Set
  • 280226P 1 1/4" Dr. Hinge Handle
  • 282262 1 1/4" Dr. 72 Teeth Flex Head Ratchet
  • GS-244MS 44 1/4" Dr. 6pt. Std./Deep Metric & SAE Hand Socket Set
  • 380336P 1 3/

This kit is suited for technicians and serious users who want coordinated drive sizes and both Metric and SAE coverage in one organized set. With ANSI compliance and a limited lifetime warranty against manufacturer defects, it’s positioned for long-term shop use where consistency and completeness matter.

More Information
Brand Genius Tools
Drive Size 1/4"; 3/8"; 1/2"
Type Master Sets
Piece Count 771
WARRANTY icon
WARRANTY

Engineered for performance, backed by confidence.

Genius Tools offers robust warranties tailored to each product line.

Warranty
SUPPORT icon
SUPPORT

Exceptional service is just a message away

Contact the Genius Tools support team via email, form, or phone.

Contact Us
BLOG icon
BLOG

want to get more out of your tools?

Check out the Genius Tools blog for helpful tips, tricks, and how-to-guides.

Blog
CATALOGUE icon
CATALOGUE

From socket sets to specialty tools, our full catalog has what pros need.

- download now

Catalogue