Home About Us International IRWIN Home All Tools Levels & Squares All Tools Accessory Storage Cases Chisels Circular Saw Blades Clamps Drill Bits Fastener Drive Hammers Handsaws Impact Accessories Levels & Squares Linear Edge Locking Tools Marking Tools Pipe Wrenches Pliers & Adjustable Wrenches Screw & Bolt Extractors Screwdrivers Snips Taps, Dies, & Sets Utility Knives & Blades Worksite Products Vises Tools by Trade Automotive Carpet Installer Do-It-Yourself Drywaller Electrician Framer General Contractor Masonry Mechanic Metalworker MRO Plumber Roofer Woodworker Levels & Squares 3 subcategories in "Levels & Squares" Subcategories Levels IRWIN offers a powerful line-up of levels packed with features that stand up to the rugged... Squares The comprehensive squares line from IRWIN includes a variety of versatile tools with easy-... Utility Levels and Accessories Offering is an array of convenient and time-saving utility levels. The durable Line and Po... IRWIN Tools IRWIN Brands IRWIN Support All Tools Tools by Trade New Tools Promotions & Events Find a Retailer VISE-GRIP® MARATHON® QUICK-GRIP® SPEEDBOR® STRAIT-LINE® MARPLES® Unibit® HANSON® Reference Guides Manuals Literature Guarantees Safety Warnings MSDS Sheets Ask IRWIN Press Center Glossary Testimonials Invention Submission Account Access Contact Us Terms of Use Updated Privacy Policy Site Map Copyright © 2021 IRWIN Tools. The blue and yellow color scheme is a trademark for IRWIN power tool accessories and non-striking hand tools. By clicking “Accept All Cookies”, you agree to the storing of cookies on your device to enhance site navigation, analyze site usage, and assist in our marketing efforts. Cookies Settings Reject All Accept All Cookies