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Mahr Micromar 44 EWR Digital Inside Micrometer

Mahr Micromar 44 EWR Digital Inside Micrometer

by Mahr
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$2,650.00
  • Self-Centering 3-Anvil Measuring Head
  • Interchangeable Measuring Heads
  • IP52 Environmental Protection
  • High-Contrast Digital Display
  • Multi-Interface Digital Output
  • Carbide-Tipped Anvils for Extended Tool Life
Customers rate us 4.5/5 based on 49 reviews.

Mahr Micromar 44 EWR Digital Inside Micrometer

$2,650.00

Description

Mahr Micromar 44 EWR Digital Inside Micrometer

The Mahr Micromar 44 EWR is a precision-grade digital inside micrometer engineered for accurate, repeatable internal diameter measurement across a broad range of industrial applications. Designed for precise measurement in through holes, blind holes, and centering shoulders, this self-centering micrometer delivers the high accuracy and repeatability demanded by machinists, engineers, and quality control professionals.

The self-centering measuring head features three laterally positioned anvils offset at 120° intervals, ensuring consistent, stable contact with the bore wall on every measurement. Carbide-tipped anvils (from 12 mm) provide exceptional wear resistance for long-term precision use, while the hardened mineral glass display pane offers superior protection against scratching and breakage in demanding workshop environments.

The threaded connection system allows for fast, tool-free measuring head changes, and the lightweight anodized aluminum head housing (from 40 mm) reduces operator fatigue during extended use. With Digimatic, Opto RS-232C, and USB data interfaces, the 44 EWR integrates seamlessly into digital measurement and SPC documentation workflows.

 

Key Features

  • Self-Centering 3-Anvil Measuring Head - Three anvils offset at 3 × 120° deliver automatic centering and stable, repeatable contact in any bore geometry.
  • Carbide-Tipped Anvils for Extended Tool Life - Carbide tips (from 12 mm) resist wear and ensure long-term measurement accuracy across high-volume inspection tasks
  • IP52 Environmental Protection - Rated IP52 for resistance to dust ingress and splashing water, providing reliable performance on the shop floor.
  • Multi-Interface Digital Output - Digimatic, Opto RS-232C, and USB interfaces enable direct data transfer to SPC software, data loggers, and measurement systems.
  • High-Contrast Digital Display - Large, easy-to-read digits support fast, error-free readings even in low-light or high-production environments.
  • Interchangeable Measuring Heads - Threaded head connection allows quick head swaps across multiple measurement ranges, maximizing instrument versatility.

 

Specifications

SKU Description Specifications
4191032 44 EWR Dig. Inside Micrometer 70-85 mm
4191034 44 EWR Dig. Inside Micrometer 100-125 mm
4191035 44 EWR Dig. Inside Micrometer 125-150 mm
4191035KAL 44 EWR Dig. Inside Micrometer 125-150 mm with Certificate
4191036 44 EWR Dig. Inside Micrometer 150-175 mm
4191037 44 EWR Dig. Inside Micrometer 175-200 mm
4191121 44 EWR Dig. Inside Micrometer 8-10 mm
4191125 44 EWR Dig. Inside Micrometer 20-25 mm
4191126 44 EWR Dig. Inside Micrometer 25-30 mm
4191127 44 EWR Dig. Inside Micrometer 30-40 mm
4191129 44 EWR Dig. Inside Micrometer 40-50 mm
4191130 44 EWR Dig. Inside Micrometer 50-60 mm
4191131 44 EWR Dig. Inside Micrometer 60-70 mm
4191160 44 EWR Dig. Inside Micrometer Set 6-12 mm
4191161 44 EWR Dig. Inside Micrometer Set 12-20 mm
4191161KAL 44 EWR Dig. Inside Micrometer Set 12-20 mm with Certificate
4191162 44 EWR Dig. Inside Micrometer Set 20-50 mm
4191162KAL 44 EWR Dig. Inside Micrometer Set 20-50 mm with Certificate
4191205 44 EWR Dig. Inside Micrometer 6 - 8 mm Res. 0,001 mm
4191206 44 EWR Dig. Inside Micrometer 8 - 10 mm Res. 0,001 mm
4191207 44 EWR Dig. Inside Micrometer 10 - 12 mm Res. 0,001 mm
4191208 44 EWR Dig. Inside Micrometer 12 - 16 mm Res. 0,001 mm
4191209 44 EWR Dig. Inside Micrometer 16 - 20 mm Res. 0,001 mm
4191210 44 EWR Dig. Inside Micrometer 20 - 25 mm Res. 0,001 mm
4191211 44 EWR Dig. Inside Micrometer 25 - 30 mm Res. 0,001 mm
4191212 44 EWR Dig. Inside Micrometer 30 - 40 mm Res. 0,001 mm
4191213 44 EWR Dig. Inside Micrometer 40 - 50 mm Res. 0,001 mm
4191214 44 EWR Dig. Inside Micrometer 50 - 60 mm Res. 0,001 mm
4191215 44 EWR Dig. Inside Micrometer 60 - 70 mm Res. 0,001 mm
4191216 44 EWR Dig. Inside Micrometer 70 - 85 mm Res. 0,001 mm
4191217 44 EWR Dig. Inside Micrometer 85 - 100 mm Res. 0,001 mm
4191218 44 EWR Dig. Inside Micrometer 100 - 125 mm Res. 0,001 mm
4191219 44 EWR Dig. Inside Micrometer 125 - 150 mm Res. 0,001 mm
4191220 44 EWR Dig. Inside Micrometer 150 - 175 mm Res. 0,001 mm
4191221 44 EWR Dig. Inside Micrometer 175 - 200 mm Res. 0,001 mm
4191240 44 EWR Dig. Inside Micrometers 6 - 12 mm , in Set
4191241 44 EWR Dig. Inside Micrometers 12 - 20 mm , in Set
4191242 44 EWR Dig. Inside Micrometers 20 - 50 mm , in Set
4191243 44 EWR Dig. Inside Micrometers 50 - 100 mm , in Set
4191260 44 EWR-g Micrometer Basic Unit for meas. heads 6 - 20 mm
4191261 44 EWR-g Micrometer Basic Unit for meas. heads 20 - 100 mm
4191262 44 EWR-g Micrometer Basic Unit for meas. heads 100 - 200 mm
4191305 44 EWRi Dig. Inside Micrometer 6 - 8 mm Res. 0,001 mm
4191306 44 EWRi Dig. Inside Micrometer 8 - 10 mm Res. 0,001 mm
4191307 44 EWRi Dig. Inside Micrometer 10 - 12 mm Res. 0,001 mm
4191308 44 EWRi Dig. Inside Micrometer 12 - 16 mm Res. 0,001 mm
4191309 44 EWRi Dig. Inside Micrometer 16 - 20 mm Res. 0,001 mm
4191310 44 EWRi Dig. Inside Micrometer 20 - 25 mm Res. 0,001 mm
4191311 44 EWRi Dig. Inside Micrometer 25 - 30 mm Res. 0,001 mm
4191312 44 EWRi Dig. Inside Micrometer 30 - 40 mm Res. 0,001 mm
4191313 44 EWRi Dig. Inside Micrometer 40 - 50 mm Res. 0,001 mm
4191314 44 EWRi Dig. Inside Micrometer 50 - 60 mm Res. 0,001 mm
4191315 44 EWRi Dig. Inside Micrometer 60 - 70 mm Res. 0,001 mm
4191316 44 EWRi Dig. Inside Micrometer 70 - 85 mm Res. 0,001 mm
4191317 44 EWRi Dig. Inside Micrometer 85 - 100 mm Res. 0,001 mm
4191318 44 EWRi Dig. Inside Micrometer 100 - 125 mm Res. 0,001 mm
4191319 44 EWRi Dig. Inside Micrometer 125 - 150 mm Res. 0,001 mm
4191320 44 EWRi Dig. Inside Micrometer 150 - 175 mm Res. 0,001 mm
4191321 44 EWRi Dig. Inside Micrometer 175 - 200 mm Res. 0,001 mm
4191340 44 EWRi Dig Inside Micrometers 6 - 12 mm , in Set
4191341 44 EWRi Dig Inside Micrometers 12 - 20 mm , in Set
4191342 44 EWRi Dig Inside Micrometers 20 - 50 mm , in Set
4191343 44 EWRi Dig Inside Micrometers 50 - 100 mm , in Set
4191360 44 EWRi-g Micrometer BasicUnit for meas. heads 6 - 20 mm
4191361 44 EWRi-g Micrometer BasicUnit for meas. heads 20 - 100 mm
4191362 44 EWRi-g Micrometer BasicUnit for meas. heads 100 - 200 mm

 

Items Included

  • Sets
    • The basic unit 44 EWg
    • Measuring heads 44 Ak
    • Setting rings
    • Battery
    • Instruction manual
    • Carrying case
  • Individual gages
    • Case
    • Battery
    • Operating instructions.
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.

Customers are saying

4.51 ★ (49)
Verified
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!

(617) 398-7852 support@precisionengineeringsupply.com
Gustavo
Founder and CEO
Available Mon – Fri
Description

Mahr Micromar 44 EWR Digital Inside Micrometer

The Mahr Micromar 44 EWR is a precision-grade digital inside micrometer engineered for accurate, repeatable internal diameter measurement across a broad range of industrial applications. Designed for precise measurement in through holes, blind holes, and centering shoulders, this self-centering micrometer delivers the high accuracy and repeatability demanded by machinists, engineers, and quality control professionals.

The self-centering measuring head features three laterally positioned anvils offset at 120° intervals, ensuring consistent, stable contact with the bore wall on every measurement. Carbide-tipped anvils (from 12 mm) provide exceptional wear resistance for long-term precision use, while the hardened mineral glass display pane offers superior protection against scratching and breakage in demanding workshop environments.

The threaded connection system allows for fast, tool-free measuring head changes, and the lightweight anodized aluminum head housing (from 40 mm) reduces operator fatigue during extended use. With Digimatic, Opto RS-232C, and USB data interfaces, the 44 EWR integrates seamlessly into digital measurement and SPC documentation workflows.

 

Key Features

  • Self-Centering 3-Anvil Measuring Head - Three anvils offset at 3 × 120° deliver automatic centering and stable, repeatable contact in any bore geometry.
  • Carbide-Tipped Anvils for Extended Tool Life - Carbide tips (from 12 mm) resist wear and ensure long-term measurement accuracy across high-volume inspection tasks
  • IP52 Environmental Protection - Rated IP52 for resistance to dust ingress and splashing water, providing reliable performance on the shop floor.
  • Multi-Interface Digital Output - Digimatic, Opto RS-232C, and USB interfaces enable direct data transfer to SPC software, data loggers, and measurement systems.
  • High-Contrast Digital Display - Large, easy-to-read digits support fast, error-free readings even in low-light or high-production environments.
  • Interchangeable Measuring Heads - Threaded head connection allows quick head swaps across multiple measurement ranges, maximizing instrument versatility.

 

Specifications

SKU Description Specifications
4191032 44 EWR Dig. Inside Micrometer 70-85 mm
4191034 44 EWR Dig. Inside Micrometer 100-125 mm
4191035 44 EWR Dig. Inside Micrometer 125-150 mm
4191035KAL 44 EWR Dig. Inside Micrometer 125-150 mm with Certificate
4191036 44 EWR Dig. Inside Micrometer 150-175 mm
4191037 44 EWR Dig. Inside Micrometer 175-200 mm
4191121 44 EWR Dig. Inside Micrometer 8-10 mm
4191125 44 EWR Dig. Inside Micrometer 20-25 mm
4191126 44 EWR Dig. Inside Micrometer 25-30 mm
4191127 44 EWR Dig. Inside Micrometer 30-40 mm
4191129 44 EWR Dig. Inside Micrometer 40-50 mm
4191130 44 EWR Dig. Inside Micrometer 50-60 mm
4191131 44 EWR Dig. Inside Micrometer 60-70 mm
4191160 44 EWR Dig. Inside Micrometer Set 6-12 mm
4191161 44 EWR Dig. Inside Micrometer Set 12-20 mm
4191161KAL 44 EWR Dig. Inside Micrometer Set 12-20 mm with Certificate
4191162 44 EWR Dig. Inside Micrometer Set 20-50 mm
4191162KAL 44 EWR Dig. Inside Micrometer Set 20-50 mm with Certificate
4191205 44 EWR Dig. Inside Micrometer 6 - 8 mm Res. 0,001 mm
4191206 44 EWR Dig. Inside Micrometer 8 - 10 mm Res. 0,001 mm
4191207 44 EWR Dig. Inside Micrometer 10 - 12 mm Res. 0,001 mm
4191208 44 EWR Dig. Inside Micrometer 12 - 16 mm Res. 0,001 mm
4191209 44 EWR Dig. Inside Micrometer 16 - 20 mm Res. 0,001 mm
4191210 44 EWR Dig. Inside Micrometer 20 - 25 mm Res. 0,001 mm
4191211 44 EWR Dig. Inside Micrometer 25 - 30 mm Res. 0,001 mm
4191212 44 EWR Dig. Inside Micrometer 30 - 40 mm Res. 0,001 mm
4191213 44 EWR Dig. Inside Micrometer 40 - 50 mm Res. 0,001 mm
4191214 44 EWR Dig. Inside Micrometer 50 - 60 mm Res. 0,001 mm
4191215 44 EWR Dig. Inside Micrometer 60 - 70 mm Res. 0,001 mm
4191216 44 EWR Dig. Inside Micrometer 70 - 85 mm Res. 0,001 mm
4191217 44 EWR Dig. Inside Micrometer 85 - 100 mm Res. 0,001 mm
4191218 44 EWR Dig. Inside Micrometer 100 - 125 mm Res. 0,001 mm
4191219 44 EWR Dig. Inside Micrometer 125 - 150 mm Res. 0,001 mm
4191220 44 EWR Dig. Inside Micrometer 150 - 175 mm Res. 0,001 mm
4191221 44 EWR Dig. Inside Micrometer 175 - 200 mm Res. 0,001 mm
4191240 44 EWR Dig. Inside Micrometers 6 - 12 mm , in Set
4191241 44 EWR Dig. Inside Micrometers 12 - 20 mm , in Set
4191242 44 EWR Dig. Inside Micrometers 20 - 50 mm , in Set
4191243 44 EWR Dig. Inside Micrometers 50 - 100 mm , in Set
4191260 44 EWR-g Micrometer Basic Unit for meas. heads 6 - 20 mm
4191261 44 EWR-g Micrometer Basic Unit for meas. heads 20 - 100 mm
4191262 44 EWR-g Micrometer Basic Unit for meas. heads 100 - 200 mm
4191305 44 EWRi Dig. Inside Micrometer 6 - 8 mm Res. 0,001 mm
4191306 44 EWRi Dig. Inside Micrometer 8 - 10 mm Res. 0,001 mm
4191307 44 EWRi Dig. Inside Micrometer 10 - 12 mm Res. 0,001 mm
4191308 44 EWRi Dig. Inside Micrometer 12 - 16 mm Res. 0,001 mm
4191309 44 EWRi Dig. Inside Micrometer 16 - 20 mm Res. 0,001 mm
4191310 44 EWRi Dig. Inside Micrometer 20 - 25 mm Res. 0,001 mm
4191311 44 EWRi Dig. Inside Micrometer 25 - 30 mm Res. 0,001 mm
4191312 44 EWRi Dig. Inside Micrometer 30 - 40 mm Res. 0,001 mm
4191313 44 EWRi Dig. Inside Micrometer 40 - 50 mm Res. 0,001 mm
4191314 44 EWRi Dig. Inside Micrometer 50 - 60 mm Res. 0,001 mm
4191315 44 EWRi Dig. Inside Micrometer 60 - 70 mm Res. 0,001 mm
4191316 44 EWRi Dig. Inside Micrometer 70 - 85 mm Res. 0,001 mm
4191317 44 EWRi Dig. Inside Micrometer 85 - 100 mm Res. 0,001 mm
4191318 44 EWRi Dig. Inside Micrometer 100 - 125 mm Res. 0,001 mm
4191319 44 EWRi Dig. Inside Micrometer 125 - 150 mm Res. 0,001 mm
4191320 44 EWRi Dig. Inside Micrometer 150 - 175 mm Res. 0,001 mm
4191321 44 EWRi Dig. Inside Micrometer 175 - 200 mm Res. 0,001 mm
4191340 44 EWRi Dig Inside Micrometers 6 - 12 mm , in Set
4191341 44 EWRi Dig Inside Micrometers 12 - 20 mm , in Set
4191342 44 EWRi Dig Inside Micrometers 20 - 50 mm , in Set
4191343 44 EWRi Dig Inside Micrometers 50 - 100 mm , in Set
4191360 44 EWRi-g Micrometer BasicUnit for meas. heads 6 - 20 mm
4191361 44 EWRi-g Micrometer BasicUnit for meas. heads 20 - 100 mm
4191362 44 EWRi-g Micrometer BasicUnit for meas. heads 100 - 200 mm

 

Items Included

  • Sets
    • The basic unit 44 EWg
    • Measuring heads 44 Ak
    • Setting rings
    • Battery
    • Instruction manual
    • Carrying case
  • Individual gages
    • Case
    • Battery
    • Operating instructions.
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.