Mitutoyo 177-139, Setting Ring, 25mm Size, 15mm Width, 53mm Outside Diameter, +/-1.5Micrometer Accuracy Bore Calibration Standard, Roundness, Reference for Internal Micrometer Setup

★★★★★ 4.4 145 reviews

$154.97
Price when purchased online
Free shipping Free 30-day returns

Sold and shipped by eurcenter.net
We aim to show you accurate product information. Manufacturers, suppliers and others provide what you see here.
$154.97
Price when purchased online
Free shipping Free 30-day returns

How do you want your item?
You get 30 days free! Choose a plan at checkout.
Shipping
Arrives May 9
Free
Pickup
Check nearby
Delivery
Not available

Sold and shipped by eurcenter.net
Free 30-day returns Details

Product details

Management number 218536788 Release Date 2026/05/03 List Price $61.99 Model Number 218536788
Category
  • MICRON?LEVEL ACCURACY STANDARD: Provides a certified internal?diameter reference (It is used as an accessory for inside micrometers, hottest and dial bore gauge) with finish?lapped roundness and a permanently marked actual ID for traceable zero?setting of inside micrometers, Holtest three?point gages, and dial bore gages across shop and lab workflows.
  • THERMALLY STABILIZED STEEL: High?grade, thermally stabilized construction resists size drift; the robust ring body supports reliable instrument seating and minimizes operator influence during bore?gage setup and verification.
  • TRACEABLE MARKED SIZE: Each ring is engraved with its actual measured ID to eliminate setup uncertainty, accelerate quick zero checks, and maintain consistent calibration across shifts and inspection stations.
  • CALIBRATION?READY WORKFLOWS: Ideal for incoming inspection, in?process verification, and periodic QC of inside micrometers, three?point Holtest gages, and dial bore gages used in aerospace, automotive, and precision manufacturing.
  • A LEGACY OF QUALITY: Our ultra-precise measurement solutions bring improved performance to countless industries, including aerospace, medical, automotive and energy. With more than 5,500 products the largest product portfolio of any commercial metrology provider we have the solutions you need to meet today's metrological challenges and customer expectations.
Item Weight 0.01 ounces
Manufacturer Mitutoyo
Item model number 177-139
Product Dimensions 2.4 x 2.3 x 1 inches
Is Discontinued By Manufacturer No

Correction of product information

If you notice any omissions or errors in the product information on this page, please use the correction request form below.

Correction Request Form

Customer ratings & reviews

4.4 out of 5
★★★★★
145 ratings | 59 reviews
How item rating is calculated
View all reviews
5 stars
81% (117)
4 stars
5% (7)
3 stars
2% (3)
2 stars
1% (1)
1 star
11% (16)
Sort by

There are currently no written reviews for this product.