---
product_id: 72690199
title: "Shars Grade 0 Rectangular Gage Block Set with NIST traceable Certificate 81 PCS 303-5307C M)"
brand: "shars"
price: "AR$1177983"
currency: ARS
in_stock: true
url: https://www.desertcart.com.ar/products/72690199-shars-grade-0-rectangular-gage-block-set-with-nist-traceable
store_origin: AR
region: Argentina
---

# ±0.000006" accuracy NIST-traceable certification 65 RC hardened steel Shars Grade 0 Rectangular Gage Block Set with NIST traceable Certificate 81 PCS 303-5307C M)

**Brand:** shars
**Price:** AR$1177983
**Availability:** ✅ In Stock

## Summary

> 📏 Elevate your precision game with the ultimate gage block set!

## Quick Answers

- **What is this?** Shars Grade 0 Rectangular Gage Block Set with NIST traceable Certificate 81 PCS 303-5307C M) by shars
- **How much does it cost?** AR$1177983 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.ar](https://www.desertcart.com.ar/products/72690199-shars-grade-0-rectangular-gage-block-set-with-nist-traceable)

## Best For

- shars enthusiasts

## Why This Product

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

## Key Features

- • **Built to Last:** Crafted from seasoned alloy tool steel hardened to 65 RC for unmatched wear and rust resistance.
- • **Precision Perfected:** Achieve ultra-fine measurements with ±6 millionth inch accuracy under standard conditions.
- • **Certified Confidence:** Includes NIST-traceable calibration certificate for guaranteed measurement reliability.
- • **Complete 81-Piece Set:** Comprehensive range of rectangular gage blocks to cover all your precision needs.
- • **Mirror-Finish Mastery:** Micro-lapped surfaces ensure flawless wringing and consistent stacking every time.

## Overview

The Shars Grade 0 Rectangular Gage Block Set (81 PCS) offers industry-leading ±6 millionth inch accuracy, crafted from hardened alloy tool steel (65 RC) with mirror-finished surfaces for perfect wringing. Calibrated and certified traceable to NIST standards, this set ensures reliable, wear-resistant precision measurement for professional environments.

## Description

Shars Grade 0 Rectangular Gage Block Set with NIST traceable Certificate 81 PCS 303-5307C M)

## Features

- Part# 303-5307C
- Our gage blocks are manufactured under carefully controlled conditions and inspected by the ASME B89.1.9-2002 standard, allowing for an accuracy of +/- 6 millionth for size under 1" block when used at room temperatures of 68 degrees Fahrenheit (or 20 degrees Celsius).
- The gage blocks are made of fully seasoned alloy tool steel with hardened to 65 RC to provide resistance to wear, abrasion, and rust.
- The measuring surface of the gage block are ground and micro-lapped to a mirror finished so the gage block can be wringable.
- Calibration certificate traceable to the N.I.S.T.

## Images

![Shars Grade 0 Rectangular Gage Block Set with NIST traceable Certificate 81 PCS 303-5307C M) - Image 1](https://m.media-amazon.com/images/I/91eKVeaLesL.jpg)

## Available Options

This product comes in different **Size, Number of Items** options.

## Questions & Answers

**Q: description says .00005" accuracy. That is not gade 3.  Are we missing a zero?**
A: The correct tolerance is: +/- 0.000050

**Q: Are they individually serialized and certified?**
A: The blocks are certified individually, there is a deviation given in microinches for each block, thus the set could be used as a master set to calibrate other gage blocks. That is if one had access to a calibration laboratory.

**Q: Do you have this set in metric? If so, Can you provide set number?**
A: We have these: http://www.shars.com/products/view/5352/Grade_2_87_PC_Metric_Gauge_Block_Setbut they're a higher grade.

**Q: does the certification show that these blocks are ISO 17025 certified?**
A: Inspections are taken place in a ISO-9001 certified laboratory and each block's measurement is recorded on the NIST traceable certificate, not a ISO17025 long form certificate

## Frequently Bought Together

- Shars Grade 0 Rectangular Gage Block Set with NIST traceable Certificate 81 PCS 303-5307C M)
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*Product available on Desertcart Argentina*
*Store origin: AR*
*Last updated: 2026-02-20*