Micrometers

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.

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

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Omschrijving Prijs Accuracy Resolution Imperial or Metric Micrometer Type Calibrated SPC Data Output Data Processing Battery Operated Set Contents Metric-Imperial Conversion Maximum Measurement Minimum Measurement
RS-stocknr. 192-5907
Fabrikantnummer293-821-30
FabrikantMitutoyo
212,11 €
Each
Aantal stuks
±2 μm 0.001 mm Metric External UKAS - - Yes - - 25mm 0mm
RS-stocknr. 833-6436
Fabrikantnummer293-821-30
FabrikantMitutoyo
174,18 €
Each
Aantal stuks
±2 μm 0.001 mm Metric External - - - Yes - - 25mm 0mm
RS-stocknr. 795-9915
Fabrikantnummer368-914
FabrikantMitutoyo
2.372,10 €
Each
Aantal stuks
- 0.005 mm Metric Internal - - - No Extension Rod, Ring Gauge - 100mm 50mm
RS-stocknr. 794-5499
Fabrikantnummer293-145-30
FabrikantMitutoyo
287,76 €
Each
Aantal stuks
±1 μm 0.001 mm Metric Special UKAS - Yes Yes - - 25mm 0mm
RS-stocknr. 192-5898
Fabrikantnummer293-240-30
FabrikantMitutoyo
265,18 €
Each
Aantal stuks
- - - - - - - - - - - -
RS-stocknr. 794-3519
Fabrikantnummer293-145-30
FabrikantMitutoyo
250,97 €
Each
Aantal stuks
±1 μm 0.001 mm Metric Special - - Yes Yes - - 25mm 0mm
RS-stocknr. 833-6427
Fabrikantnummer293-240-30
FabrikantMitutoyo
228,05 €
Each
Aantal stuks
±1 μm 0.001 mm Metric External - - - Yes - - 25mm 0mm
RS-stocknr. 342-5317
FabrikantRS PRO
390,05 €
Each
Aantal stuks
±0.005 mm 0.001 mm Both Depth UKAS - - Yes - Yes 150mm 0mm
RS-stocknr. 315-7834
FabrikantRS PRO
357,33 €
Each
Aantal stuks
±0.005 mm 0.001 mm Both Depth - - - Yes - Yes 150mm 0mm
RS-stocknr. 705-1229
FabrikantRS PRO
88,50 €
Each
Aantal stuks
±0.002 mm 0.001 mm Both External - - - Yes - Yes 25mm 0mm
RS-stocknr. 704-8775
FabrikantRS PRO
123,92 €
Each
Aantal stuks
±0.002 mm 0.001 mm Both External UKAS - - Yes - Yes 25mm 0mm
RS-stocknr. 795-9906
Fabrikantnummer368-913
FabrikantMitutoyo
2.017,58 €
Each
Aantal stuks
- 0.005 mm Metric Internal - - - No 368-166, 368-167, 368-168, 368-169 - 50mm 20mm
RS-stocknr. 192-5906
Fabrikantnummer102-217
FabrikantMitutoyo
100,34 €
Each
Aantal stuks
±0.002 mm 0.01 mm Metric External UKAS - - No Case, Gauge - 25mm 0mm
RS-stocknr. 705-1279
FabrikantRS PRO
344,96 €
Each
Aantal stuks
±0.002 mm 0.001 mm Both Special - - - Yes Battery, Case, User Manual Yes 25mm 0mm
RS-stocknr. 397-6584
Fabrikantnummer102-217
FabrikantMitutoyo
60,74 €
Each
Aantal stuks
±0.002 mm 0.01 mm Metric External - - - No Case, Gauge - 25mm 0mm
RS-stocknr. 432-255
Fabrikantnummer101468M
FabrikantMitutoyo
12,98 €
Each
Aantal stuks
- - Metric Ball Attachment - - - No - - - -
RS-stocknr. 705-1260
FabrikantRS PRO
202,94 €
Each
Aantal stuks
±0.003 mm 0.001 mm Both Internal - - - Yes Battery, Case, Setting Ring, User Manual Yes 30mm 5mm
RS-stocknr. 572-101
Fabrikantnummer103-138
FabrikantMitutoyo
90,55 €
Each
Aantal stuks
±0.002 mm 0.01 mm Metric External - - - No Adjustment Tool, Case, Stand, User Manual - 50mm 25mm
RS-stocknr. 794-3513
Fabrikantnummer293-146
FabrikantMitutoyo
340,97 €
Each
Aantal stuks
±1 μm 0.001 mm Metric Special - - Yes Yes - - 50mm 25mm
RS-stocknr. 794-3516
Fabrikantnummer293-100-10
FabrikantMitutoyo
1.874,69 €
Each
Aantal stuks
±0.5 μm 0.0001 mm, 0.0005 mm Metric External - - Yes Yes - - 25mm 0mm