Mitutoyo 293-347 Coolant Proof LCD Micrometer, Ratchet Thimble, 3-4"/76.2-101.6mm Range, 0.001mm/0.00005" Graduation, +/-0.0001" Accuracy, Without SPC
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Product Feature
- Digital, single-value readout LCD displays in inch and metric units for readability
- Automatic off function helps preserve battery life
- Ratchet thimble mechanism helps provide uniform pressure for precise, repeatable measurements
- Rated IP65 for resistance to penetration by dust and liquid up to the force of a low-pressure water jet
- Carbide facing on spindle and anvil provides wear resistance
Product Description
The Mitutoyo 293 series Coolant Proof LCD micrometer has a digital single-value LCD readout that displays in inch and metric units with resolution 0.00005� (0.001mm), and a ratchet thimble mechanism that helps provide precise, repeatable measurement.
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. On some models, an output jack transmits Statistical Process Control (SPC) data results to a computer or external device through an interface cable (sold separately). The electronics housing has an Ingress Protection 65 (IP65) rating, 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 and are carbide-tipped for wear resistance. A spindle lock helps provide secure locking of the measurement position. The micrometer includes, and is powered by, a single SR44 silver oxide battery, and comes with a fitted case for storage.
Micrometers are precision measuring instruments that use a calibrated screw to measure small 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.
Mitutoyo manufactures precision measuring tools, metrology equipment, and systems. The company was founded in Tokyo in 1934 and formed Mitutoyo America Corporation in 1963, which is headquartered in Aurora, IL.
Mitutoyo 293-347 Coolant Proof LCD Micrometer, Ratchet Thimble, 3-4"/76.2-101.6mm Range, 0.001mm/0.00005" Graduation, +/-0.0001" Accuracy, Without SPC Review
I've used a few styles of digital and plain vernier micrometers, and this one by far has impressed me the most. The screw action is very smooth with absolutely no play, and I'm able to repeat measurements to .0001" (with my giant orangutan hands). The digital readout does display to .00005" and with a consistent measuring force, should accurately reflect it.In the end, it's a micrometer just like any other. Given a choice between this and another tool though, I would absolutely buy the Mitutoyo. It feels great in hand, the display is very quick to update and easy to read, and battery life has so far been phenomenal.
I bought mine though a tool program at work, so it ended up a little cheaper than the price here (not much), but nonetheless this tool is worth the money. Skip the 'economy' brand micrometers and spend the extra couple of dollars; you thank yourself for it. Plus, it looks sexy, and everyone loves a beautiful tool!
For reference, I have the 0-1" and 1-2" versions of this mic.
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