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External Supermicrometer® Model C
The Supermicrometer Model C is the most popular bench micrometer in the world that can measure just about any manufactured precision part or gage such as pins, plugs, and all types of threads.

The External Supermicrometer^® Model C measures:

• Your Precision Parts
• Pin & Plug Gages
• External Thread Gages
• Dial / Test Indicators
• Taper Threads - Pipe Threads (API Gages)
• Dial Bore Gages
• Cylindrical Setting Gages
• Spheres 
• Setting Masters / Setting Gauges   
• Taps, Dies, and Cutting Tools
• Gears / Splines
• Feeler Gages   

Features & Benefits of the External Supermicrometer^® Model C:

• Heavy-duty cylindrical bed - Chromium-plated cylinder ensures long life and performance integrity and the rack and pinion drive eliminates movement during the measuring cycle
• Adjustable pressure tailstock - Exclusive Electrolimit^® tailstock offers adjustable pressure from 2 to 48 ounces (50 to 1350 g) for reliability and optimum performance of your Supermike.  Adjustable pressure is required for thread gage calibration and using 3-wires for Pitch Diameter (PD) measurement.  
• Carbide-tipped measuring spindles - Non-rotating measuring spindles have long life, corrosion-free lapped anvils and are calibrated to ultra finish and precision.  A must for measuring thousands of pins or precision components.  
• Elevating table - Adjustability allows for presentation of the part to the instrument in a non-influencing manner
• Direct-reading, digital touchscreen readout box - Easy-to-read digital display provides direct reading in inch or metric units.  USB & Serial/RS 232 port is included. Optional Foot Switch is available to log the measurement value.
• Calibrated analog meter - Establishes the reference zero for taking direct measurements from the microprocessor-based digital display
• Digital module - Divides the measurement into 0.000010 inch (0.25 micron) increments for high resolution. If higher resolution is needed,the Model PC Supermic bench micrometer has 0.000001 inch (0.025 micron) resolution. 
• Optional GageCal^® software - Microsoft^® Windows based software reduces data entry, eliminates transcription errors, and speeds up measurements of your digital Supermicrometer. GageCal automatically enters tolerances for taper threads, plugs, pins, straingt threads (calculates pitch/major diameter) and flags out-of-tolerance conditions. The most widely used bench micrometer software! 
• Foot switch (optional) - Log the measurement value with a press of the foot switch (works with Digital Touchscreen Readout Box only)

Pratt & Whitney
Pratt & Whitney®, founded in 1860, is a global supplier of ultra-precision Metrology instruments, inspection gaging systems, and length measuring machines. Our instruments incorporate the latest in laser and sensor technology allowing for fast and accurate measurements.  Industry applications span across a wide range including, but not limited to: aerospace components, automotive parts, medical devices, thin film materials, roller & ball bearings, transducers, optical components, semiconductor devices, gear-spline-thread assemblies.  Calibration laboratory applications include: gage blocks, internal and external threads, national pipe threads (NPT), cylindrical plugs, pin gages, ring gages, dial/test indicators, length standards, taper gages, micrometers, calipers, snap gages, disc masters, API gages, thread wires, bore gauges, and your precision parts.