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attributes.Features

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attributes.IP_Rating

attributes.Set_Contents

attributes.Maximum_Measurement

attributes.Minimum_Measurement

Mitutoyo 101468M Ball Attachment Micrometer Accessory

Mitutoyo 103-177 External Micrometer, Range 0 →1 in

Mitutoyo 293-334 External Micrometer, Range 0 mm →25 mm

Mitutoyo 103-137 External Micrometer, Range 0 mm →25 mm

Mitutoyo 103-138 External Micrometer, Range 25 mm →50 mm

Mitutoyo 340-351-10 External Micrometer, Range 0 mm →152 mm

Mitutoyo 293-345 External Micrometer, Range 25 mm →50 mm

Mitutoyo 293-344 External Micrometer, Range 0 mm →25 mm

Mitutoyo 103-139-10H External Micrometer, Range 50 mm →75 mm

Mitutoyo 293-676-20 External Micrometer, Range 0 mm →30 mm


A micrometer (sometimes called micrometer screw gauge) is a precision measuring instrument, used to obtain very fine measurements and available in metric and imperial versions. They use a calibrated screw or thread (found internally on the spindle) for precise measurement of components in mechanical engineering and machining as well as most mechanical trades. They usually come in the form of callipers e.g. opposing ends joined by a frame. Learn how to calibrate and use micrometers correctly in our comprehensive [micrometers guide](/web/generalDisplay.html?id=ideas-and-advice/micrometers-guide).

### What are Micrometers are composed of?

Here is a list of different components that make up a typical multimeter:

- Frame - The C-shaped body that holds the anvil and barrel in constant relation to each other,
- Anvil - The shiny part that the spindle moves toward, and that the sample rests against,
- Sleeve/barrel/stock - The stationary round component with the linear scale on it, sometimes with vernier markings,
- Locknut / lock-ring / thimble lock - The knurled component (or lever) that tightens to hold the spindle stationary,
- Spindle - The shiny cylindrical component that the thimble causes to move toward the anvil,
- Thimble - The component that turns by using a person's thumb. Graduated markings,
- Ratchet stop - Device on the end of the handle that limits applied pressure by slipping at a calibrated torque,
- Screw.

### How do they work?

The precision is determined by the thread pitch of the spindle. The spindle is a very accurately machined screw and the object to be measured is placed between the spindle and the anvil. The spindle is moved by turning the ratchet knob or thimble until the object to be measured is lightly touched by both the spindle and the anvil.

### Types of Micrometers
- Outside micrometer: most common type used to measure external dimensions such as the outside diameter of an object.
- Inside micrometer; used to measure inside dimensions like the inside diameter of a hole or tube. There are two types: calliper-type and tubular and rod.
- Depth micrometer: these are used to measure the depths of holes, slots and steps. They come with a variety of interchangeable rods of different lengths so that they can be used to measure a range of depths.

### Advantages
- Provide very accurate measurements and are considered one of the most accurate types of measuring device
- Ratchet speeder helps to provide reliable measurements
- Integrated scales, the sleeve scale and thimble scale are built into the tool, another measuring instrument such as a ruler or tape measure is not required
- Durability and long-lasting and unlikely to need replacing or repairing


Micrometers

Engineering Test & Measurement

Test & Measurement

1228569899

1492797549

1805640584

1872595187

1950438482

2099506070

2911534392

2972144945

3047907070

3089561311

3379516231

3702440375

3893962904

3999174723

4084450865

482906937

573211935

607105215

630592386

1337321341

1713511683

1953764780

215561600

2212326362

245755136

2675376924

2694081498

2854130884

3031041232

3479376779

3537785963

3606191116

3676807775

3694170890

3696367266

3871454867

3980878867

4239710393

730636658

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