The Fowler 52-229-780-0 Combo Tool Set includes three vernier-scale outside micrometers with a combined measuring range of 0" to 3", a white dial caliper with a 0" to 6" measuring range, a white dial indicator with 1" travel, a magnetic base with a V-shaped base and an 85lb pull. The shockproof stainless steel dial caliper has a white dial and dial graduations of 0.001" with 0.001" accuracy, and beam-engraved 0.1" graduations, and is used for measuring inside dimensions (ID), outside dimensions (OD), depths, and steps. The dial indicator has a white 2.25" dial with continuous and balanced dial readings, a 1" measuring range, 0.001" graduations, a revolution counter, tolerance markers and is designed for taking measurements in machining, layout, and inspection work. The set also includes three vernier-scale outside micrometers which have a 0" to 1", 1" to 2", and 2" to 3" measuring range and a flat anvil/spindle pair for general purpose measuring. The Vernier scale has 0.0001" microfine graduation intervals on a satin chrome finish for precise readings. Fowler, an American company, manufactures premium inspection and measurement instruments like electronic indicators, calipers, bore gages, and micrometers. The company, founded in 1946, is headquartered in Canton, MA.