INSIZE Angle Plate / Square 150x100 mm model 4790-0150, class 00

INSIZE Angle Plate / Square 150x100 mm model 4790-0150, class 00 is a precision machined angle plate with nominal faces measuring 150 × 100 mm, designed to provide accurate perpendicular reference surfaces for layout, inspection and machining setup. Constructed to class 00 accuracy, this angle plate offers stable, flat faces and rigid support for workpieces and gauges in workshops and quality control labs. The tool is suitable for use as a measurement standard, a clamping aid during milling or drilling operations, and for holding parts square to inspection instruments.

Advantages

This INSIZE angle plate delivers class 00 accuracy, ensuring reliable right-angle reference for precision tasks. Its machined faces provide stable contact and repeatable positioning of workpieces and gauges. The compact 150 × 100 mm footprint offers a balance between rigidity and space efficiency on the workbench or surface plate. The product is intended for professional workshop and inspection use, where defined perpendicularity and stable support reduce setup time and improve measurement consistency.

Suitable for

• Layout and marking of components requiring accurate 90° reference.
• Inspection tasks on surface plates and measurement benches.
• Fixturing and clamping during milling, drilling, grinding and assembly.
• Calibrating or checking alignment of gauges, indicators and fixtures.

Key specifications

• Nominal reference face dimensions: 150 × 100 mm.
• Accuracy class: 00 (high precision perpendicularity).
• Material: hardened and ground steel surfaces for stability and wear resistance.
• Finish: precision machined, ground faces for repeatable contact.
• Form: right-angle plate with two perpendicular reference faces.

How to use

Place the angle plate on a stable surface plate or workbench and ensure it sits flat and free of debris. Align the workpiece against the two perpendicular faces to establish a 90° reference, then clamp the part securely to the plate or to the base through available clamping points. For inspection tasks, mount dial indicators or other gauges against the workpiece while it is held square by the angle plate. When used for machining setup, ensure the plate is rigidly fixed to prevent movement during cutting operations.

Usage recommendations

Keep the reference faces clean and protected from nicks and corrosion. Store the angle plate in a dry environment and avoid impacts that could alter its accuracy. For critical measurements, verify perpendicularity periodically against a calibrated square or surface plate and handle with care to maintain class 00 accuracy.