CRV Chromium-Vanadium Steel Shears (60 HRC). The High-Hardness Cutting Edges Are Heat-Treated, And The Double-Lever Design Reduces Effort, Making The Shears Cut As Smoothly As Butter. Ideal For Cutting Metal Sheets Such As Color-Coated Steel Tiles, Purlins, Aluminum Sheets, And Sheet Metal, These Shears Are A Highly Efficient And Reliable Tool For Renovation Projects, Sheet Metal Fabrication, And DIY Projects.