The Mitutoyo digital QuantuMike coolant-proof micrometer utilizes a courser spindle thread which feeds the spindle by 2mm per revolution of the thimble instead of the standard 0.5mm. The coolant-proof micrometer’s ratchet thimble mechanism provides a constant measuring force on the spindle to ensure accurate, repeatable measurements.

Faster measurement is achieved by using a coarser thread which feeds the spindle by 2mm per revolution of the thimble instead of the standard 0.5mm. This increase in thread lead has been made possible thanks to new high-precision thread-cutting and test techniques. Trials show that a reduction in positioning times of 60% and measuring times of 35% (Mitutoyo’s comparison test data) can be obtained, compared with a conventional micrometer. The time needed to measure 6 diameters on a workpiece, from the smallest to the largest with the micrometer held in one hand, was recorded for a conventional digital micrometer and for the QuantuMike.

The patented ratchet thimble mechanism helps ensure repeatable results by transmitting micro-vibrations along the spindle to the contact face to provide a constant measuring force and encourage good contact with the workpiece. The ratchet works from the thimble as well as the speeder, so it is always easy to use - even when making measurements one-handed. The sound of the ratchet provides the user with a sense of confidence and the speeder enables the rapid spindle feed needed when measuring widely different dimensions.

Coolant-Proof is the universal term for Mitutoyo Digimatic Small Tool Instruments that are free from measurement error and physical deterioration due to routine exposure to water, cutting oil, or coolant. This high performance is achieved by using encoders that are inherently immune to contamination, where exposure is inevitable, combined with comprehensive sealing techniques and extremely oil-resistant materials to guarantee a long working life under normal operating conditions. 

Statistical process control is the application of statistical methods to monitor and control a process, enabling more efficient quality control. This helps to ensure the process operates as efficiently, producing more specification-confirming products with less waste. SPC cables are used to output measurement data from the Digimatic gage with the output feature to the Digimatic mini processor, Digimatic display unit, multiplexer, or other devices.

See Brochure/Data Sheet for Model Specifications and Functions

• Available in Metric and Inch/Metric models
• A highly rigid frame and high-performance constant-force mechanism enable more stable measurements, while the clicks emitted when the work piece is being measured assure the operator that measurement is proceeding normally
• Carbide tips resist wear on the measuring faces for accurate measurements for an extended period of time
• Function lock helps prevent error
• A graduated scale is provided on the sleeve for use with a reference mark on the thimble so that every millimeter displacement can be checked to provide extra confidence
• IP65 protection level provides excellent resistance against oil, water and dust enables this product to be used in machining situations that include splashing coolant fluid
• Optional SPC output function allows for quick and easy data management in real-time
• Functions include Origin Set, Zero/ABS, Hold, Function Lock, Auto Power On/Off, and inch/mm conversion (on inch/metric models only)
• A Certificate of Inspection is supplied with each instrument shipped that guarantees the quality of the product. Please note that this certificate cannot be used to obtain a Certificate of Calibration because the purchase date cannot be specified

Please see Brochure and Data Sheet in the Documents section for additional info/technical data