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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รายละเอียดสินค้า / Description ราคา / Price Accuracy Resolution Imperial or Metric Micrometer Type SPC Data Output Data Processing Battery Operated Set Contents Metric-Imperial Conversion Maximum Measurement Minimum Measurement
RS Stock No. 833-6427
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.293-240-30
Brand :Mitutoyo
THB9,843.11
Each
Units
±1 μm 0.001 mm Metric External - - Yes - - 25mm 0mm
RS Stock No. 833-6423
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.293-230-30
Brand :Mitutoyo
THB13,153.04
Each
Units
±1 μm 0.001 mm Metric External Yes - Yes - - 25mm 0mm
RS Stock No. 833-6433
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.293-330-30
Brand :Mitutoyo
THB12,286.00
Each
Units
±0.00005 in 0.001 mm Both External Yes - Yes - - 25mm 0mm
RS Stock No. 486-8254
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.293-344
Brand :Mitutoyo
THB12,579.96
Each
Units
±0.00005 in 0.00005 in Both External - - Yes Battery, Case, User Manual Yes 25mm 0mm
RS Stock No. 833-6436
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.293-821-30
Brand :Mitutoyo
THB7,779.46
Each
Units
±2 μm 0.001 mm Metric External - - Yes - - 25mm 0mm
RS Stock No. 833-6442
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.293-340-30
Brand :Mitutoyo
THB9,015.62
Each
Units
±0.00005 in 0.001 mm Both External - - Yes - - 25mm 0mm
RS Stock No. 794-3522
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.293-140-30
Brand :Mitutoyo
THB13,700.63
Each
Units
±1 μm 0.001 mm Metric Special Yes Yes Yes - - 25mm 0mm
RS Stock No. 794-3519
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.293-145-30
Brand :Mitutoyo
THB13,195.86
Each
Units
±1 μm 0.001 mm Metric Special - Yes Yes - - 25mm 0mm
RS Stock No. 795-9915
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.368-914
Brand :Mitutoyo
THB92,852.09
Each
Units
- 0.005 mm Metric Internal - - No Extension Rod, Ring Gauge - 100mm 50mm
RS Stock No. 572-088
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.103-137
Brand :Mitutoyo
THB2,817.64
Each
Units
±0.002 mm 0.01 mm Metric External - - No Adjustment Tool, Case, User Manual - 25mm 0mm
RS Stock No. 795-9906
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.368-913
Brand :Mitutoyo
THB78,975.09
Each
Units
- 0.005 mm Metric Internal - - No 368-166, 368-167, 368-168, 368-169 - 50mm 20mm
RS Stock No. 794-3525
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.293-141
Brand :Mitutoyo
THB16,926.39
Each
Units
±1 μm 0.001 mm Metric Special Yes Yes Yes - - 50mm 25mm
RS Stock No. 796-0019
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.7822
Brand :Mitutoyo
THB2,165.52
Each
Units
- - Metric Contact Point Set - - No Flat Point 10 mm, Flat Point 5 mm, Needle Point, Shell Type Point, Spherical Point - - -
RS Stock No. 353-3682
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.293-676-20
Brand :Mitutoyo
THB25,300.07
Each
Units
±0.0001 in 0.00005 in Both External Yes Yes Yes Battery, Case, User Manual Yes 30mm 0mm
RS Stock No. 397-6584
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.102-217
Brand :Mitutoyo
THB2,292.77
Each
Units
±0.002 mm 0.01 mm Metric External - - No Case, Gauge - 25mm 0mm
RS Stock No. 574-343
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.340-351-10
Brand :Mitutoyo
THB45,309.70
Each
Units
±0.001 in 0.00005 in Both External Yes Yes Yes Battery, Case, User Manual Yes 152mm 0mm
RS Stock No. 432-255
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.101468M
Brand :Mitutoyo
THB643.16
Each
Units
- - Metric Ball Attachment - - No - - - -
RS Stock No. 794-3513
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.293-146
Brand :Mitutoyo
THB13,346.66
Each
Units
±1 μm 0.001 mm Metric Special - Yes Yes - - 50mm 25mm
RS Stock No. 572-072
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.103-177
Brand :Mitutoyo
THB2,817.64
Each
Units
±0.0001 in 0.001 in Imperial External - - No Adjustment Tool, Case, User Manual - 1in 0in
RS Stock No. 397-6590
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.102-218
Brand :Mitutoyo
THB3,374.27
Each
Units
±0.002 mm 0.01 mm Metric External - - No Case, Gauge - 50mm 25mm