Magnetic Angle Locator Level & Tool Dial Gauge Angle Finder Magnetic Protractor 0-5"/120mm: Amazon.com: Tools & Home Improvement
6 Pcs Arrow Welding Magnet, Welding Magnet Set for Metal Working 25, 50, and 75 Lbs Strength Magnetic Welding Holder, 45,90,135,180Degree Angle Fits for welding, soldering, assembling - Amazon.com
Swanson Magnetic Angle Finder
Johnson Level Magnetic Angle Locater in the Protractors department at Lowes.com
Adjust-O™ Angle Magnet - Strong Hand Tools
Swanson Tool Company Magnetic Angle Finder in the Magnetic Tools department at Lowes.com
Adjustable Angle Magnetic Square, Angle 30°-270°, Inside/Outside Magnets, Angle Setting Pin, Mag. Pull Force 26 lbs, Welding Square, "4.7", MLA450, Strong Hand Tools: Amazon.com: Tools & Home Improvement