Micrometers

What are 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 calipers e.g. opposing ends joined by a frame.
Micrometers are composed of:
• 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.
• Lock nut / 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 end of 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: caliper-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. 572-561
FabrikantnummerDW934
FabrikantStarrett
239,66 €
Each
Aantal stuks
±0.01 mm - Metric Internal - - - No Adjustment Tool, Measuring Rod, Micrometer Head - 300mm 50mm
RS-stocknr. 704-8787
FabrikantRS PRO
214,23 €
Each
Aantal stuks
±0.002 mm 0.001 mm Both External UKAS - - Yes Battery, Case, User Manual Yes 50mm 25mm
RS-stocknr. 487-2433
Fabrikantnummer293-344
FabrikantMitutoyo
241,51 €
Each
Aantal stuks
±0.00005 in 0.00005 in Both External UKAS - - Yes Battery, Case, User Manual Yes 1in 0in
RS-stocknr. 785-7834
FabrikantRS PRO
105,16 €
Each
Aantal stuks
0.005 mm 0.01 mm Metric Internal - - - No Barrel, Fitted Case with Adjustment Tools, Micrometer, Sleeve, Spindle Locking Screw - 30mm 5mm
Nieuw
RS-stocknr. 192-5899
FabrikantRS PRO
307,88 €
Each
Aantal stuks
- - - - - - - - - - - -
RS-stocknr. 725-5702
FabrikantRS PRO
33,43 €
Each
Aantal stuks
±0.004 mm 0.01 mm Metric External - - - No Adjustment Tool, Case - 50mm 25mm
RS-stocknr. 785-7840
FabrikantRS PRO
249,54 €
Each
Aantal stuks
- 0.01 mm Metric Internal - - - No Barrel, Micrometer, Sleeve, Spindle Locking Knob, Storage Case - 600mm 50mm
RS-stocknr. 431-533
FabrikantnummerDW934
FabrikantStarrett
276,22 €
Each
Aantal stuks
±0.01 mm - Metric Internal UKAS - - No Adjustment Tool, Measuring Rod, Micrometer Head - 300mm 50mm
RS-stocknr. 785-7866
FabrikantRS PRO
29,45 €
Each
Aantal stuks
0.005 mm 0.01 mm Both Special - - - No Adjustment Tools, Barrel, Sleeve - 6.5mm 0mm
RS-stocknr. 397-6590
Fabrikantnummer102-218
FabrikantMitutoyo
86,94 €
Each
Aantal stuks
±0.002 mm 0.01 mm Metric External - - - - Case, Gauge - 50mm 25mm
RS-stocknr. 157-1187
FabrikantnummerDY094
FabrikantStarrett
51,21 €
Each
Aantal stuks
±0.002 mm - Metric External - - - No - - 25mm 0mm
RS-stocknr. 572-123
Fabrikantnummer103-139-10H
FabrikantMitutoyo
98,63 €
Each
Aantal stuks
±0.002 mm 0.01 mm Metric External - - - No Adjustment Tool, Case, Stand, User Manual - 75mm 50mm
RS-stocknr. 248-9196
FabrikantRS PRO
102,92 €
Each
Aantal stuks
±0.01 mm 0.01 mm Metric Special - - - No - - 25mm 0mm
RS-stocknr. 794-3525
Fabrikantnummer293-141
FabrikantMitutoyo
418,35 €
Each
Aantal stuks
±1 μm 0.001 mm Metric Special - Yes Yes Yes - - 50mm 25mm
RS-stocknr. 785-7838
FabrikantRS PRO
113,98 €
Each
Aantal stuks
0.005 mm 0.01 mm Metric Internal - - - - Barrel, Fitted Case with Adjustment Tools, Micrometer, Sleeve, Spindle Locking Screw - 50mm 25mm
RS-stocknr. 704-8753
FabrikantRS PRO
438,08 €
1 Set
Set(s)
±0.001 in 0.0001 in Imperial External UKAS - - No Setting Rod - 6in 0in
RS-stocknr. 572-072
Fabrikantnummer103-177
FabrikantMitutoyo
50,49 €
Each
Aantal stuks
±0.0001 in 0.001 in Imperial External - - - No Adjustment Tool, Case, User Manual - 1in 0in
RS-stocknr. 705-1266
FabrikantRS PRO
220,58 €
1 Set
Set(s)
±0.001 in 0.0001 in Imperial External - - - No Setting Rod - 6in 0in
RS-stocknr. 725-1946
FabrikantRS PRO
73,93 €
Each
Aantal stuks
±0.004 mm 0.01 mm Metric External UKAS - - No Adjustment Tool, Case - 50mm 25mm
RS-stocknr. 794-5632
Fabrikantnummer293-141
FabrikantMitutoyo
458,85 €
Each
Aantal stuks
±1 μm 0.001 mm Metric Special UKAS Yes Yes Yes - - 50mm 25mm
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