The Mitutoyo 64PKA077 Digimatic tool kit includes the Mitutoyo 293-348 coolant-proof digital micrometer with friction thimble, and the Mitutoyo 500-196-20 digital caliper for making precise measurements in machining, manufacturing, and mechanical engineering applications. The kit also includes a micrometer wrench and a fitted wooden box.
The Mitutoyo 293 series Coolant Proof LCD micrometer has 0 to 1"/0 to 25 mm digital LCD readout with a 0.00005"/0.001 mm resolution for taking outside diameter (OD) measurements. A friction thimble stops turning when the spindle comes into contact with the workpiece providing precise, repeatable measurements between operators. The knob is close to the frame and workpiece, allowing the operator to adjust the micrometer with one hand. The micrometer's electronic microprocessor can hold measurements at any position, convert to absolute value, set a temporary zero position, and return to a true zero reading. The electronics housing is Ingress Protection certified IP65, which means that components are resistant to penetration by dust and debris, and resistant to penetration by liquids and coolant up to the force of a low-pressure (to 30 kilonewtons/meter-squared) water jet. The spindle and anvil have flat measuring faces that are carbide-tipped for wear resistance. A spindle lock helps provide secure locking of the measurement position. The micrometer is powered by a single SR44 silver oxide battery that lasts approximately 1.2 years with continuous normal use (battery included).
The Mitutoyo Digimatic 500-196-20 digital caliper is made of durable hardened stainless steel, has a 0 to 6"/0 to 150 mm measuring range, a 0.0005"/0.01 mm resolution, a 0.075" diameter round depth bar, and uses Mitutoyo's Absolute linear encoder technology, which allows you to set the origin and measure in awkward or difficult locations. This digital caliper has LCD readout and function control buttons on the caliper face, including Origin to set and retain the original measuring point, and Zero/ABS (Absolute Scale) to zero-set the LCD display. The caliper uses an Absolute electrostatic capacitance linear encoder which helps prevent overspeed errors. It measures outside diameter (OD), inside diameter (ID), depth, and step, where the butt end of the fixed jaw measures one end of a work piece before its upper/lower or inside/outside "steps" are measured. Also included are origin-setting, zero-setting, and on/off automatic shutoff function buttons. An alarm alerts the user to low voltage, and scale contamination and counting value composition errors. A rolling thumb wheel makes fine adjustments and a thumb screw locks the scale's position. Response speed is unlimited. The caliper is powered by one SR44 silver oxide cell battery that lasts approximately 3.5 years with continuous normal use (battery included).
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.
Mitutoyo manufactures precision measuring tools, metrology equipment, and related systems. The company, founded in Tokyo in 1934, formed Mitutoyo America Corporation in 1963 with headquarters in Aurora, IL.
What's in the Box?
- Digimatic micrometer, 0 to 1" measuring range (293-348)
- Digimatic caliper, 0 to 6" measuring range (500-196-20)
- Micrometer wrench
- (2) SR44 silver oxide cell batteries
- Fitted wooden storage box