---
product_id: 629431537
title: "30Pcs Surface Roughness Comparators,Roughness Test Block Ra0.05-12.5mm Microfinish Comparator, Surface Finish Comparator Set for Lathe Machinery Manufactur Teach (30pcs Surface Roughness comparators)"
brand: "upamcarker"
price: "$7420"
currency: MXN
in_stock: true
reviews_count: 2
category: "Up Amcarker"
url: https://www.desertcart.mx/products/629431537-30pcs-surface-roughness-comparators-roughness-test-block-ra0-05-12
store_origin: MX
region: Mexico
---

# Ra0.05-12.5mm precision range 6 machining methods coverage 45# carbon steel durability 30Pcs Surface Roughness Comparators,Roughness Test Block Ra0.05-12.5mm Microfinish Comparator, Surface Finish Comparator Set for Lathe Machinery Manufactur Teach (30pcs Surface Roughness comparators)

**Brand:** upamcarker
**Price:** $7420
**Availability:** ✅ In Stock

## Summary

> ⚙️ Master Surface Perfection — Don’t Let Imperfections Define You!

## Quick Answers

- **What is this?** 30Pcs Surface Roughness Comparators,Roughness Test Block Ra0.05-12.5mm Microfinish Comparator, Surface Finish Comparator Set for Lathe Machinery Manufactur Teach (30pcs Surface Roughness comparators) by upamcarker
- **How much does it cost?** $7420 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.mx](https://www.desertcart.mx/products/629431537-30pcs-surface-roughness-comparators-roughness-test-block-ra0-05-12)

## Best For

- upamcarker enthusiasts

## Why This Product

- Trusted upamcarker brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **User-Friendly Layout:** Clearly marked, neatly arranged samples make comparison effortless for pros and learners alike.
- • **Complete Surface Insight Kit:** Includes 30 comparator blocks plus a 32-blade feeler gauge set for comprehensive texture and thickness checks.
- • **Precision at Your Fingertips:** Covering ultra-fine Ra0.05 to coarse 12.5mm roughness for exact surface quality control.
- • **Built to Last, Built to Perform:** Crafted from premium 45# super carbon steel with protective oil film for long-term reliability.
- • **Versatile Machining Compatibility:** Accurately measures roughness across horizontal/vertical milling, turning, grinding, and lapping.

## Overview

This 30-piece Surface Roughness Comparator set offers a wide Ra0.05-12.5mm measurement range, ideal for professionals and students needing precise surface finish evaluation across six machining processes. Made from durable 45# carbon steel with a protective oil film, it ensures long-lasting accuracy. The set includes clearly labeled samples and a 32-blade feeler gauge, making it a comprehensive tool for quality control, calibration, and teaching applications.

## Description

30Pcs Surface Roughness Comparators,Roughness Test Block Ra0.05-12.5mm Microfinish Comparator, Surface Finish Comparator Set for Lathe Machinery Manufactur Teach (30pcs Surface Roughness comparators): desertcart.com: Industrial & Scientific

Review: Good product. - Well packaged, clearly marked, fast service. It appears to be accurately made but for peace of mind I shall have it tested to see if the accuracy is reasonable. Over-all it is a good product from what I am able to determine so far.
Review: Decent but seems pricy - Everything came well packaged, and the feeler gage set looks pretty solid. The four swatch holder has set screws along the edge that you can back off if you need to remove a sample for some reason. The samples themselves look to be well machined, but don't come with any sort of traceability, and I don't have an effective way to confidently verify their claimed accuracy. If you're a hobbyist on a budget these could be a good option, but if you need these for completing customer jobs I'd personally shell out the extra cash for something with a standard I could point to.

## Features

- 【High-precision Measurement Ra0.05-12.5mm 】Surface roughness stand comparator come standard with 30 samples of different roughness levels, providing you with a wide range of choices to easily distinguish and compare different surface qualities to ensure that the product meets the highest standards
- 【Wide Range of Applications】It can measure the roughness of six processing methods (horizontal milling, vertical milling, turning, plain grinding, flat lapping, external grinding). Able to perform a variety of functions such as measurement of different types of surfaces, inspection of various textures, etc.
- Stable and Durable】These standard kits are made of stable and durable made of 45 super carbon steel, not easy to deform and durable.Advanced technology, stable quality, complete grades and specifications, high hardness and good wear resistance. It has a protective oil film You can rest assured of long-term and repeated use to ensure accuracy and reliability
- 【Easy to Use】Clear comparison and differentiation table The model number of the standard set is clearly marked, and the sample blocks are arranged neatly and correspond one to one, making it easy to compare, observe and distinguish. Whether you are a professional engineer or a student, you can easily operate and compare to meet your needs
- 【what you will get】1 set 30 Specimens Surface Roughness Comparator Composite Pocket Set Gauge, Ra0.05-12.5mm Microfinish Comparator,and 1 handful Feeler Gauge Set Stainless Steel Thickness Gauge 32 Blades 0.04-0.88 mm (0.0015-0.035 Inch)Helping you with your surface roughness measurement, quality control and instrument calibrationand teaching projects

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CXPNL7YD |
| Best Sellers Rank | #179,894 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #9 in Surface Roughness Gauges |
| Date First Available | March 11, 2024 |
| Item Weight | 1.19 pounds |
| Item model number | 30Pcs Surface Roughness Comparator |
| Manufacturer | UpAmcarker |
| Product Dimensions | 6.5 x 3 x 0.8 inches |

## Images

![30Pcs Surface Roughness Comparators,Roughness Test Block Ra0.05-12.5mm Microfinish Comparator, Surface Finish Comparator Set for Lathe Machinery Manufactur Teach (30pcs Surface Roughness comparators) - Image 1](https://m.media-amazon.com/images/I/71CGFvWb02L.jpg)

## Available Options

This product comes in different **Size** options.

## Customer Reviews

### ⭐⭐⭐⭐ Good product.
*by G***R on November 12, 2025*

Well packaged, clearly marked, fast service. It appears to be accurately made but for peace of mind I shall have it tested to see if the accuracy is reasonable. Over-all it is a good product from what I am able to determine so far.

### ⭐⭐⭐⭐ Decent but seems pricy
*by K***I on May 28, 2024*

Everything came well packaged, and the feeler gage set looks pretty solid. The four swatch holder has set screws along the edge that you can back off if you need to remove a sample for some reason. The samples themselves look to be well machined, but don't come with any sort of traceability, and I don't have an effective way to confidently verify their claimed accuracy. If you're a hobbyist on a budget these could be a good option, but if you need these for completing customer jobs I'd personally shell out the extra cash for something with a standard I could point to.

## Frequently Bought Together

- 30Pcs Surface Roughness Comparators,Roughness Test Block Ra0.05-12.5mm Microfinish Comparator, Surface Finish Comparator Set for Lathe Machinery Manufactur Teach (30pcs Surface Roughness comparators)
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*Product available on Desertcart Mexico*
*Store origin: MX*
*Last updated: 2026-03-17*