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INSIZE 3128-28 Digital Wide Range Three Points Internal Micrometer, 2-2.8"/51-71mm

by Insize
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$1,215.00
  • Wide measurement range
  • High precision digital readout
  • Self-centering three-point contact
  • Durable & workshop ready
  • Convenient operation

INSIZE 3128-28 Digital Wide Range Three Points Internal Micrometer, 2-2.8"/51-71mm

$1,215.00

Description

INSIZE 3128-28 Digital Wide Range Three Points Internal Micrometer

Are you looking for a high-precision, digital, wide-range, three-point internal micrometer designed to measure internal diameters between 2.0″ and 2.8″ (51 – 71 mm)? The INSIZE 3128-28 Digital Wide Range Three Points Internal Micrometer is has a self-centering three-point contact design, this micrometer delivers consistent and repeatable measurements, eliminating common errors from two-point measurements. Rugged yet refined, it’s built with carbide measuring faces and rated to IP54, making it well suited for industrial environments where dust and splash resistance matters. Its digital readout, data output capabilities, and automatic power-off feature maximize usability and efficiency for metrology labs, machine shops, and quality control operations.

 

Key Features

  • Wide Measurement Range — Covers internal diameters from 2.0″ to 2.8″ (51 – 71 mm) with a single instrument.
  • High Resolution — Displays measurements at 0.00005″ / 0.001 mm, enabling very fine measurement precision.
  • Three-Point Contact Design — Self-centering carbide contact points ensure stable, repeatable readings and minimize measurement error.
  • Rugged & Protective — IP54-rated for dust and splash water resistance, suitable for workshop or light industrial settings.
  • User-Friendly Controls — Buttons allow for On/Off, Set, Inch/mm toggle, and ABS/INC mode for flexible operation.
  • Digital Data Output — Enables measurement data to be sent via data output port for SPC or further analysis.
  • Automatic Power-Off — Conserves battery life by shutting down after a period of inactivity.
  • Durable Construction — Carbide measuring faces for long life, ratchet stop mechanism for consistent contact force.
  • Included Accessories — Comes with extension rods, a 2″ setting ring, and a spare LR44 battery for immediate use.

 

Specifications

Model 3128-28
Measuring Range 2.0″ – 2.8″ / 51 – 71 mm
Resolution 0.00005″ / 0.001 mm
Accuracy ±0.00020″ (per manufacturer)
Contact Material Carbide measuring faces
Load Mechanism Ratchet stop for uniform force
Protection Rating IP54 (dust-proof, splash-proof)
Battery LR44 (supplied)
Display LCD digital readout
Data Output Yes (cabled)
Functions ABS/INC, inch/mm conversion, set, on/off
Standards Meets DIN 863-4 (per spec sheet)

 

Items Included

  • Main digital three-point internal micrometer
  • 2″ diameter setting ring
  • 6″ / ~150 mm extension rod
  • LR44 battery
  • Inspection certificate / calibration report (traceable)
  • Plastic storage / carrying case (per standard kit)

INSIZE ISHW-L20B Webster Hardness Tester ManualInsize 3128-28 Digital Wide Range Three Points Internal Micrometer Manual

Shipping

Shipping is FAST & FREE on all orders shipped to the continental USA.

Why Buy From Us

Shipping is FAST & FREE on all orders shipped to the continental USA.

Best Price Guarantee. 

30 Day Easy Returns. 

Se Habla Español - Falamos Português

Pricing

We will beat ANY price found online! Reach out to us for more information by calling at (617) 398-7852 or emailing us at support@precisionengineeringsupply.com.

Returns

Easy 30 day returns! We pride ourselves in helping you with your needs Please reach out by calling at (617) 398-7852 or emailing us at support@precisionengineeringsupply.com to start your return.

Financing

Enjoy flexible payment options with Affirm. Split your purchase into easy, interest-free installments or choose a financing plan that fits your budget — all available directly at checkout.

Have a question?

Call or Text Gustavo Before You Buy!

Every order gets my personal attention. Call before you buy and I'll make sure it's the right fit and the right price!

Gustavo
Founder and CEO
Available Mon – Fri
Description

INSIZE 3128-28 Digital Wide Range Three Points Internal Micrometer

Are you looking for a high-precision, digital, wide-range, three-point internal micrometer designed to measure internal diameters between 2.0″ and 2.8″ (51 – 71 mm)? The INSIZE 3128-28 Digital Wide Range Three Points Internal Micrometer is has a self-centering three-point contact design, this micrometer delivers consistent and repeatable measurements, eliminating common errors from two-point measurements. Rugged yet refined, it’s built with carbide measuring faces and rated to IP54, making it well suited for industrial environments where dust and splash resistance matters. Its digital readout, data output capabilities, and automatic power-off feature maximize usability and efficiency for metrology labs, machine shops, and quality control operations.

 

Key Features

  • Wide Measurement Range — Covers internal diameters from 2.0″ to 2.8″ (51 – 71 mm) with a single instrument.
  • High Resolution — Displays measurements at 0.00005″ / 0.001 mm, enabling very fine measurement precision.
  • Three-Point Contact Design — Self-centering carbide contact points ensure stable, repeatable readings and minimize measurement error.
  • Rugged & Protective — IP54-rated for dust and splash water resistance, suitable for workshop or light industrial settings.
  • User-Friendly Controls — Buttons allow for On/Off, Set, Inch/mm toggle, and ABS/INC mode for flexible operation.
  • Digital Data Output — Enables measurement data to be sent via data output port for SPC or further analysis.
  • Automatic Power-Off — Conserves battery life by shutting down after a period of inactivity.
  • Durable Construction — Carbide measuring faces for long life, ratchet stop mechanism for consistent contact force.
  • Included Accessories — Comes with extension rods, a 2″ setting ring, and a spare LR44 battery for immediate use.

 

Specifications

Model 3128-28
Measuring Range 2.0″ – 2.8″ / 51 – 71 mm
Resolution 0.00005″ / 0.001 mm
Accuracy ±0.00020″ (per manufacturer)
Contact Material Carbide measuring faces
Load Mechanism Ratchet stop for uniform force
Protection Rating IP54 (dust-proof, splash-proof)
Battery LR44 (supplied)
Display LCD digital readout
Data Output Yes (cabled)
Functions ABS/INC, inch/mm conversion, set, on/off
Standards Meets DIN 863-4 (per spec sheet)

 

Items Included

  • Main digital three-point internal micrometer
  • 2″ diameter setting ring
  • 6″ / ~150 mm extension rod
  • LR44 battery
  • Inspection certificate / calibration report (traceable)
  • Plastic storage / carrying case (per standard kit)

INSIZE ISHW-L20B Webster Hardness Tester ManualInsize 3128-28 Digital Wide Range Three Points Internal Micrometer Manual

Shipping

Shipping is FAST & FREE on all orders shipped to the continental USA.

Why Buy From Us

Shipping is FAST & FREE on all orders shipped to the continental USA.

Best Price Guarantee. 

30 Day Easy Returns. 

Se Habla Español - Falamos Português

Pricing

We will beat ANY price found online! Reach out to us for more information by calling at (617) 398-7852 or emailing us at support@precisionengineeringsupply.com.

Returns

Easy 30 day returns! We pride ourselves in helping you with your needs Please reach out by calling at (617) 398-7852 or emailing us at support@precisionengineeringsupply.com to start your return.

Financing

Enjoy flexible payment options with Affirm. Split your purchase into easy, interest-free installments or choose a financing plan that fits your budget — all available directly at checkout.