Contains a Carefully Selected Assortment of Hand Tools Needed for Most Industrial, Mechanical, and Consumer ApplicationsSet Includes 1/4" and 3/8" Drive Tools (SAE & Metric) Allowing the User to Tackle a Wide Range of ProjectsTools Meet Stringent New ANSI and ASME Specifications and Come With a Full Satisfaction GuaranteeCrestoloy® Alloy Steel for Strength and DurabilityUpgraded Set Includes a New, Heavy-Duty Blow Mold Case with Steel Hinges and 2 Latches to Keep Your Tools Organized and SecureUpgraded Set Includes Longer Wrenches with Narrower Heads as Well as a New Ratchet Design with 10% Longer Beam and Smaller Teardrop HeadUpgraded Set Includes Innovative New Hex Key Caddy that Makes Access to the Size You Need Quick and EasyUpgraded Set Includes Acetate Magnetic Bit Driver for Improved Impact, UV, and Solvent Resistance