Fowler 54-004-875 X-Proof IP54 Electronic Measuring Set, 6" Euro-Cal IV and 0-1" Electronic Micrometer

The Fowler 54-815 series outside micrometer has a flat anvil/spindle pair, a 0 to 1" measuring range, an LCD with an inch/metric switchable resolution, and is designed for general purpose measuring. A switchable resolution of 0.00005" and 0.001mm, and an accuracy of 0.00016" provide precise readings and accurate measurements. Carbide measuring faces provide wear resistance. The ratchet-stop thimble provides an audible sound and stops turning when the spindle comes into contact with the workpiece, providing constant force for consistent measurements between operators. The LCD has a hold feature that saves the reading for recording and can be set to zero at any spindle location. The micrometer can be set to take absolute or incremental measurements. Absolute measurements provide the total dimension of the workpiece. Incremental measurements provide a reading that shows the difference between a set standard and workpiece being measured. This type of reading is often used to determine if a workpiece falls within tolerance levels. A built-in clock logs the time measurements are taken and an automatic shut-off feature extends battery life. RS-232 output transfers data to a computer (cable not included). The steel construction housing provides durability and is Ingress Protection (IP) certified IP54 for protection against dust and water.

The Fowler Euro-Cal IV digital caliper has an accuracy of 0.001"/0.02mm with 0.0005"/0.01mm resolution, with fractions in 1/64" increments for precise measurements and is used for measuring inside dimensions (ID), outside dimensions (OD), depth, and step. The hardened stainless steel frame provides durability. The digital, single-value readout LCD shows inch, metric, and fractional units for versatility when measuring. It has a zero setting and absolute and incremental measuring modes for taking intermediate or differential measurements and direct metric/inch conversion. The knurled lock screw holds the sliding jaw in position and helps ensure a consistent measurement. The hardened stainless steel frame offers corrosion resistance and long life. The caliper is Ingress Protection (IP) certified IP54 for protection against dust and water.

Micrometers are precision measuring instruments that use a calibrated screw to measure distances. These measurements are translated into large rotations of the screw that are then able to be read from a scale or a dial. Micrometers are typically used in manufacturing, machining, and mechanical engineering. There are three types of micrometer: outside, inside, and depth. Outside micrometers may also be called micrometer calipers, and are used to measure the length, width, or outside diameter of an object. Inside micrometers are typically used to measure interior diameter, as in a hole. Depth micrometers measure the height, or depth, of any shape that has a step, groove, or slot.

Digital calipers are measuring instruments commonly used for inspection in manufacturing to provide the precise measurements of an object. A pair of jaws attached to a long beam with a marked scale is used to take inside, outside, and step measurements. An additional depth probe slides along the beam to take depth measurements. One jaw is fixed to the end of the scale, while the other jaw slides along it with gearless precision to take measurements. The reading is electronically generated and displayed on a digital, high-resolution screen as a single value. Digital calipers can take differential measurements that are used to determine the difference in measurements between two objects, by zeroing the display at any point along the scale. Some digital calipers can switch between standard and metric units, and some can output readings to a computer or printer for recording measurements. Caliper gages are used in production settings where specific diametrical or thickness measurements must be repeated frequently with precision and accuracy. Compared to dial calipers, digital calipers provide measurements that are faster, easier, and more error-free, but they are more fragile mechanically and electronically, and do not resist coolant well. Vernier calipers are more durable than digital calipers because they do not have internal moving parts, but they can be more difficult to read. Digital calipers are commonly used in fields such as metalworking, mechanical engineering, machining, carpentry, and medicine.

The Fred V. Fowler Company manufactures inspection and measurement instruments such as electronic indicators, calipers, bore gages, and digital scales. The company, founded in 1946, is headquartered in Newton, MA.

What’s in the Box?

• Fowler 54-815-001-2 digital micrometer
• 54-100-330-1 digital caliper
• Fitted case