10" Magnetic Cast Toolbox Level w/Plumb Site The Kapro magnetic cast torpedo level features 3 acrylic shock-resistant vials to help provide easy horizontal, vertical and 45° readings with an accuracy of up to 0.0005 in. The plumb site technology allows you to read the vial from the front and helps prevent neck and back strain. The heavy-duty cast-aluminum frame provides durability and the compact size helps you access small spaces.