An official Distributor of Niigata Seiki in Vietnam

Steel square

Steel square is another tool used in the mechanical industry for quick, accurate, and efficient measurements.

Introduction

It is a product line manufactured by  Niigata Seiki – Japan.

Application:

  • Steel square is made from stainless steel and is designed for checking right angles and precise marking.
  • It is applied in industries such as shipbuilding, steel construction, machining, and assembly.
  • Additionally, it is also commonly used in woodworking, stonework, construction, and more.

Features:

  • Available in various sizes and designs to suit different machining needs
  • Low distortion and excellent wear resistance
  • Clear and sharp markings for the most accurate measurement results
  • High durability over time
  • Can be used for precise distance measurement and marking
  • Made from high-hardness steel with a smooth finish

Types of Steel square

Steel square (Type AA / DD)

First grade (Hardened):

  • USE
    ● Measurement of squareness
  • MATERIAL
    ● Carbon steel for machine structual use(hardened measuring face)
    ● Hardness: over HV450
  • FEATURES
    ● Dimension and accuracy equivalent to JIS B 752 (※exceeds JIS)
    ● Hardened measuring face for abrasion resistance
    ● All hardened, first grade squares are provided with inspection report

Second grade (Non-hardened):

  • FEATURES
    ● Dimension and accuracy equivalent to JIS B 7526 (※exceeds JIS)
    ● Non-hardened・Ground finish
Thước đo vuông AA-F150

 AA Type

Thước đo vuông loại DD

DD Type

Steel square with metric graduated blade (Type C & Type E)

  • USE
    ● Measurement of squareness
  • MATERIAL
    ● Carbon steel for machine structual use
  • FEATURES
    ● Graduated with 1mm division
    ● Accuracy equivalent to JIS Grade 2
  • Graduation Accuracy:  0.4 (±mm)
Thước đo vuông lưỡi kim loại loại C

C-150

Thước đo vuông lưỡi kim loại loại E

E-150

Heavy duty steel square (HDD Type)

  • USE
    ● Measurement of squareness
  • MATERIAL
    ● Carbon steel for machine structual use (hardened)
  • FEATURES
    ● The heavy duty ‘DD’ type is engineered for ultimate stability
    ● Provided with inspection report
Khối V thép nặng HDD-150

HDD – 150

Steel square with flush mounted beam (TRS Series )

  • USE
    ● Measurement of squareness
  • MATERIAL
    ● Carbon steel for machine structual use
  • FEATURES
    ● Available in “right handed” and “left handed” versions
    ● Accuracy equivalent to JIS Grade 2
  • Grade 1 is also available on request
Thước đo vuông TRS series

Blade steel square (AAI series)

  • USE
    ● For precise right angle measurement
  • MATERIAL
    ● Carbon steel for machine structual us (hardened)
  • FEATURES
    ● Knife-shaped outer blade reflects light ray on object to be measured for clearance inspection
  • Squareness Accuracy:
    + AAI-100K: +/- 3.0 μm
    + AAI-150K: +/- 3.5 μm
Blade steel square I_type

AAI -150K

Cylindrical square ( CS-F Series)

  • USE
    ● For precise right angle measurement
  • MATERIAL
    ● Alloy tool steel “hardened”
  • FEATURES
    ● Accuracy equivalent to JIS B 7539
    ● The highest squareness accuracy in the square products
    ● Non-conductive handle is less thermal expansion when in use

CS-F100

T- square (TS Series)

  • USE
    ● For general engineering work or marking work
  • MATERIAL
    ● Carbon steel for machine structual use
  • FEATURES
    ● The blade and beam are permanently secured by rivets
  • Nominal Size: 100 ~ 1000 mm
  • Weight: 130 g~10,9 kg
Thước đo vuông TS series

TS Series

Flange square (FS series )

    • USE
      ● Inspection of surfaces with fange, and piping connections
    • MATERIAL
      ● Rolled steel for general structure
    • Nominal Size:
      – 200 x 300: FS-1
      – 300 x 400: FS-2
      – 680 x 750: FS-3
    • Straightness: +/- 0,037 mm ~0,071 mm
    • Weight: 520g ~ 3,7 kg

FS Series

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Technical Information

Other handheld measuring devices