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DIG. 3 POINTS INSIDE MICROMETER 20-25MM 0.004MM ACC. 0.001MM RES.

DIG. 3 POINTS INSIDE MICROMETER 20-25MM 0.004MM ACC. 0.001MM RES.
DIG. 3 POINTS INSIDE MICROMETER 20-25MM 0.004MM ACC. 0.001MM RES.
R 13,986.00
Ex Tax: R 12,161.74
  • Stock: 2
  • Model: AC361-006-01
  • Weight: 1.22kg
  • Dimensions: 172.00mm x 298.00mm x 298.00mm
  • SKU: AC361-006-01
  • UPC: 6009515858216
For 10 or more items, click to quote
3 Point Digital Inside Micrometer 20mm - 25mm
SERIES 361

A precision measuring instrument designed to measure the internal dimensions of bores, holes, and other cylindrical spaces with a high degree of accuracy. Unlike traditional micrometers, which measure external dimensions, this tool specializes in gauging internal diameters. The digital display provides an easy-to-read measurement, improving accuracy and reducing the chances of human error.

  • Resolution: 0.001mm/0.00005'
  • IP65 protection level
  • Button: on/off, set, mm/inch, ABS/INC, data output
  • Automatic power off
  • Data output
  • Ratchet stop
  • Carbide measuring faces (over 12mm series)
  • Extension rod are included
  • Setting rings are included (Range < 100mm)

How it works:

  • Three-point contact: The micrometer has three measuring points that evenly distribute pressure on the inner surface of the hole, ensuring accurate and repeatable measurements.
  • Digital display: The measured diameter is displayed digitally, eliminating the need for manual reading and reducing the possibility of errors.
  • Extension rods: These can be used to measure deeper holes.

Applications

  • Machining and Metalworking: Used to measure the internal diameters of bores and holes in metal components, ensuring that they meet the required specifications.
  • Quality Control: Essential in inspection processes to verify the accuracy of internal dimensions in manufactured parts.
  • Engineering: Applied in various engineering tasks where precise internal measurements are critical, such as in the design and fabrication of mechanical parts.
  • Automotive and Aerospace Industries: Used for measuring the internal diameters of engine cylinders, bearing races, and other critical components that require precise tolerances.

Usage Procedure

  1. Select the Appropriate Measuring Head: If the micrometer comes with interchangeable heads, choose the one that matches the range of the bore to be measured.
  2. Zero the Micrometer: Set the micrometer to zero using a calibrated ring gauge or setting standard.
  3. Insert into the Bore: Carefully insert the measuring head into the bore, ensuring that the three-point contacts are aligned with the bore's axis.
  4. Expand the Measuring Points: Use the thimble to gently expand the measuring points until they make firm contact with the bore walls.
  5. Read the Measurement: Observe the digital display for the internal diameter measurement. Ensure that the micrometer is properly centered in the bore for an accurate reading.
  6. Record or Transfer Data: Record the measurement manually or transfer it to a connected device if using the data output feature.

Technical Specifications

Part No Range Accuracy Setting Ring Extension Rod a b c L
AC361-001-01 6-8mm/0.24-0.31' 4µm ø6mm(included) 100mm 1.5 2.5 0 54.5
AC361-002-01 8-10mm/0.31-0.4' 4µm ø8mm(included) 100mm 1.5 2.5 0 63
AC361-003-01 10-12mm/0.4-0.47' 4µm ø10mm(included) 100mm 1.5 2.5 0 63
AC361-004-01 12-16mm/0.47-0.63' 4µm ø16mm(included) 150mm 0.5 6 4.5 80
AC361-005-01 16-20mm/0.63-0.8' 4µm ø16mm(included) 150mm 0.5 6 4.5 80
AC361-006-01 20-25mm/0.8-1' 4µm ø25mm(included) 150mm 0.5 8 6 105
AC361-007-01 25-30mm/1-1.2' 4µm ø25mm(included) 150mm 0.5 8 6 105
AC361-008-01 30-40mm/1.2-1.6' 4µm ø40mm(included) 150mm 0.5 14 12 110
AC361-009-01 40-50mm/1.6-2' 5µm ø40mm(included) 150mm 0.5 14 12 110
AC361-010-01 50-63mm/2-2.5' 5µm ø62mm(included) 150mm 0.5 17.5 14.5 114
AC361-011-01 62-75mm/2.5-3' 5µm ø62mm(included) 150mm 0.5 17.5 14.5 114
AC361-012-01 75-88mm/3-3.5' 5µm ø87mm(included) 150mm 0.5 17.5 14.5 114
AC361-013-01 87-100mm/3.5-4' 5µm ø87mm(included) 150mm 0.5 17.5 14.5 114
AC361-014-01 100-125mm/3.94-4.92' 6µm optional 150mm 0.9 29 25 175
AC361-015-01 125-150mm/4.92-5.91' 6µm optional 150mm 0.9 29 25 175
AC361-016-01 150-175mm/5.91-6.89' 7µm optional 150mm 0.9 29 25 175
AC361-017-01 175-200mm/6.89-7.87' 7µm optional 150mm 0.9 29 25 175
AC361-018-01 200-225mm/7.87-8.86' 8µm optional 150mm 0.9 29 25 175
AC361-019-01 225-250mm/8.86-9.84' 8µm optional 150mm 0.9 29 25 175
AC361-020-01 250-275mm/9.84-10.83' 9µm optional 150mm 0.9 29 25 175
AC361-024-01 275-300mm/10.83-11.81' 9µm optional 150mm 0.9 29 25 175
Installing the battery

 

Calibration of the Digital Three Points Inside Micrometer

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