Review on Enhanced Search-Optimized Magnetic Locator by IRWIN Tools - Model 1794488 by David Moreno

'Magnetic Base' is actually on the side of the device (like the left side of 'Irwin' in the picture) and not the base. If you want to measure angles with an object stuck in a magnet, be prepared to measure about 90 minus ? corresponds to calculations. Aside from that and the fact that the needle is a little sticky, it's great for measuring simple dangling angles.