00 Grade Precision Granite Flat Straight Edge Gauge
00 Grade Precision Granite Flat Straight Edge Gauge
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00 Grade Precision Granite Flat Straight Edge Gauge

Price
MOQ
$1199
100 Pieces
Product Details
material:
Natural Jinan Blue Granite
hardness:
HS65~HS70
flatness_tolerance:
0.5μm/m to 2μm/m
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Shipping & Delivery Info:
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Payment Methods:
T/T PayPal
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After-Sales Support:
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Product Description
Company Info

Basic Info

This 00-grade precision granite flat straight edge gauge is fabricated from high-density natural Jinan blue granite, precision ground and calibrated to meet ultra-high measurement accuracy requirements. It is designed for high-precision flatness detection, scribing positioning and other industrial inspection scenarios, boasting wear-resistant, corrosion-resistant and deformation-resistant properties. It caters to precision measurement needs in industries such as machinery manufacturing, electronic semiconductors and precision instruments, effectively improving detection accuracy and work efficiency.

Key attributes

material
Natural Jinan Blue Granite
hardness
HS65~HS70
flatness_tolerance
0.5μm/m to 2μm/m
surface_roughness
Ra≤0.1μm
operating_temperature
10℃~30℃
calibration_standard
GB/T 20437-2006, ASTM E740
load_capacity
≤50kg per meter
packaging
Foam inner box + wooden outer pallet
certification
ISO 9001, China Metrology Certification
length_options
500mm~3000mm
material
Natural Jinan Blue Granite
hardness
HS65~HS70
flatness_tolerance
0.5μm/m to 2μm/m
surface_roughness
Ra≤0.1μm
operating_temperature
10℃~30℃
calibration_standard
GB/T 20437-2006, ASTM E740
load_capacity
≤50kg per meter
packaging
Foam inner box + wooden outer pallet
certification
ISO 9001, China Metrology Certification
length_options
500mm~3000mm

Customer reviews

Michael · Quality Control Engineer
The 00-grade granite square ruler has been an essential tool in our precision measurement process. Its exceptional flatness and right-angle accuracy have significantly improved our quality control checks. We use it daily to verify the perpendicularity of machine parts, and it consistently delivers reliable results. The granite material ensures minimal thermal expansion, making it perfect for our temperature-controlled lab environment.

Product Description

Product features:

This flat straight edge gauge stands out with its 00-grade top precision, the lowest flatness tolerance in the mainstream granite measuring tool series, ensuring consistent and reliable measurement results for long-term use. Its natural granite material has excellent thermal stability, not easy to deform under temperature changes or long-term loading, eliminating the deviation caused by metal tool fatigue. The surface is polished to a mirror-like finish with ultra-low roughness, reducing measurement friction and ensuring scratch-free contact with measured workpieces. It complies with international and domestic metrology standards, making it suitable for third-party inspection and calibration scenarios, and its modular packaging design facilitates easy transportation and storage.

https://globalsyt.oss-accelerate.aliyuncs.com/materials/214/0/20260313111311_69b380c759ecc.webp

Product specifications:

The standard length specifications range from 500mm to 3000mm, with customized sizes available upon request. The cross-sectional dimensions are standardized at 40mm width × 60mm height for mainstream models, with a total weight ranging from 8kg (500mm length) to 48kg (3000mm length). It meets the 00-grade flatness tolerance specified in GB/T 20437-2006 and ASTM E740, with each product undergoing strict 100% inspection before leaving the factory. The surface has no cracks, air bubbles or other defects, ensuring long-term service life of more than 10 years under normal use.

https://globalsyt.oss-accelerate.aliyuncs.com/materials/214/0/20260313111311_69b380c7767b9.jpg

Product application:

This flat straight edge gauge is mainly used in the mechanical processing industry for detecting the flatness of machine tool worktables, calibrating assembly lines and positioning precision components. It is also widely used in electronic semiconductor manufacturing workshops for detecting the flatness of silicon wafer carriers, in the mold processing industry for checking the flatness of mold surfaces, and in the measurement room of quality inspection departments as a standard measuring tool for precision calibration. It is suitable for both laboratory precision detection and on-site industrial production inspection scenarios.

Frequently Asked Questions (FAQ)

Q:What are the key features of 00-grade precision granite square angle rulers?
A:00-grade precision granite square angle rulers feature ±0.005mm/m accuracy, thermal stability, and wear resistance. Ideal for high-precision measurement in metrology labs and manufacturing, they provide superior flatness and right-angle verification.

Company Profile

Business Type:
Manufacturer
Main Products:
granite measuring tools,precision instrument,Optical instruments and accessories,Machinery and equipment
Year of Establishment:
2019
Number of Employees:
51-100 People
Address:
200 meters east of Wangxin Village, Zhaozhaizi Town, Gaotang County, Liaocheng City, Shandong Province, north of the road, Liaocheng, Shandong, China
Average Response Time:
14 Days

General Information

Business Type:
Manufacturer
Main Products:
granite measuring tools,precision instrument,Optical instruments and accessories,Machinery and equipment
Year of Establishment:
2019
Number of Employees:
51-100 People
Management System Certification:
HACCP,TL900,QS9000,SA8000,ISO9001,ISO9004,ISO17799,ISO9000,ISO14000,ISO10441,ISO16949,TS16969,ISO19011:2000,OHSAS18001,Others
Address:
200 meters east of Wangxin Village, Zhaozhaizi Town, Gaotang County, Liaocheng City, Shandong Province, north of the road, Liaocheng, Shandong, China

Trade Capability

Main Markets:
北美,南美洲,东欧,东南亚,非洲,大洋洲,中东,东亚,西欧,中美洲,北欧,南欧,南亚,国内市场
Shipping Ports:
Export Volume:
US$1.5 Million-US$2.5 Million
Average Lead Time:
14 Days
Payment Terms:
T/T L/C MoneyGram PayPal D/P Western Union Others
Cooperation Mode:
OEM ODM
Customization Supported:
No
Number of Foreign Trade Sales Staff:
51-100 People
Overseas Agent / Overseas Branch:
No

Company Show

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