Steel square, polished measuring surface, accuracy per DIN 875/0, with manufacturer’s calibration certificate, dimensions 200×130 mm, cross-section 30×6 mm

Description

Flat steel square, DIN 875/0, 200×130 mm is supplied with the manufacturer’s calibration certificate and serves as the precision squareness reference for verifying that two surfaces meet at 90° within the standard’s tolerance band. The flat-bar geometry — a long blade mounted at a right angle to a short stock — allows the precision-finished blade to be placed against a workpiece surface while the stock rests against the other surface; any lack of squareness is indicated by a light gap or blade clearance. DIN 875/0 is the highest flatness/squareness grade — inspection class accuracy suitable for surface plate work and sub-µm squareness verification.

The cross-section is 30×6 mm — dimensioned for the size class so that the blade has the bending stiffness to resist operator pressure flex during squareness checks. A thin blade would deflect under contact pressure and give a false reading. The cross-section/length ratio is designed according to the standard for this reason.

The flat-square form (as opposed to the knife-edge form, the other DIN 875 variant) provides a robust working surface that withstands handling on a fitter’s bench. Knife-edge squares are more sensitive — light band gaps under 1 µm are visible against a polished surface — but the edge is fragile. The included manufacturer’s calibration certificate documents the actual squareness deviation, making it defensible during a metrology audit.

Common applications: machined edge squareness verification on a manufactured bracket, fitter’s bench layout squareness checks during assembly, jig and fixture base squareness verification, and as a squareness master for transferring 90° to a workpiece during scribed line layout.

Features

• Flat steel square, DIN 875/0
• Dimensions 200×130 mm, cross-section 30×6 mm
• Precision-finished working surfaces (blade and stock)
• Inspection class accuracy — surface plate compatible
• Flat-bar geometry — robust under bench handling
• Manufacturer’s calibration certificate included — defensible during metrology audit

Specifications

Compatible accessories

Feeler gauges (sold separately) for clearance measurement against the blade. Mitutoyo precision spirit level for combined squareness and level verification. Mitutoyo gauge block maintenance kit (item 64-516650).

Additional information

Specifications

Flat steel square, DIN 875/0, 200×130 mm is supplied with the manufacturer’s calibration certificate and serves as the precision squareness reference for verifying that two surfaces meet at 90° within the standard’s tolerance band. The flat-bar geometry — a long blade mounted at a right angle to a short stock — allows the precision-finished blade to be placed against a workpiece surface while the stock rests against the other surface; any lack of squareness is indicated by a light gap or blade clearance. DIN 875/0 is the highest flatness/squareness grade — inspection class accuracy suitable for surface plate work and sub-µm squareness verification.

The cross-section is 30×6 mm — dimensioned for the size class so that the blade has the bending stiffness to resist operator pressure flex during squareness checks. A thin blade would deflect under contact pressure and give a false reading. The cross-section/length ratio is designed according to the standard for this reason.

The flat-square form (as opposed to the knife-edge form, the other DIN 875 variant) provides a robust working surface that withstands handling on a fitter’s bench. Knife-edge squares are more sensitive — light band gaps under 1 µm are visible against a polished surface — but the edge is fragile. The included manufacturer’s calibration certificate documents the actual squareness deviation, making it defensible during a metrology audit.

Common applications: machined edge squareness verification on a manufactured bracket, fitter’s bench layout squareness checks during assembly, jig and fixture base squareness verification, and as a squareness master for transferring 90° to a workpiece during scribed line layout.

Features

• Flat steel square, DIN 875/0
• Dimensions 200×130 mm, cross-section 30×6 mm
• Precision-finished working surfaces (blade and stock)
• Inspection class accuracy — surface plate compatible
• Flat-bar geometry — robust under bench handling
• Manufacturer’s calibration certificate included — defensible during metrology audit

Specifications

Compatible accessories

Feeler gauges (sold separately) for clearance measurement against the blade. Mitutoyo precision spirit level for combined squareness and level verification. Mitutoyo gauge block maintenance kit (item 64-516650).