1. PREMIUM MATERIAL - High strength chrome vanadium steel construction with rust preventative zinc coating ensures durability . 2.Easy to use, Precision 12-Point Box end Allows Easy Fastener Engagement. end Offset by 15 Degrees is Better for Tight Working Spaces. 3.Our Wrench Lengths Provide Better Lever Performance, Making Your Job Easier and Effectively Loosening Stubborn or Rusty Bolts and Nuts.