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INSIZE Protractor: 8.110in Blade Lg, 0°to 180°, 1° Graduations, +/-0.3° Accuracy - Manual-Reading Miter Protractors
INSIZEManual-Reading Miter Protractors

INSIZE Protractor: 8.110in Blade Lg, 0°to 180°, 1° Graduations, +/-0.3° Accuracy

The INSIZE 4781-85A is a manual-reading miter protractor with an 8.110-inch blade length, constructed from steel. It measures angles from 0° to 180° with 1° graduations and an accuracy of +/-0.3°.

SKU 3G-OTH-305855

Brand
INSIZE
Item
Protractor: 8.110in Blade Lg, 0°to 180°, 1° Graduations, +/-0.3° Accuracy
Category
Manual-Reading Miter Protractors
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Technical Specifications

INSIZE
Manufacturer Part Number
4781-85A
Type
0°to 180°, +/-0.3° Accuracy, Steel
Graduations
1°
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INSIZE Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The INSIZE 4781-85A is a manual-reading miter protractor with an 8.110-inch blade length, constructed from steel. It measures angles from 0° to 180° with 1° graduations and an accuracy of +/-0.3°.

Frequently Asked Questions

What is the INSIZE 4781-85A protractor used for?

The INSIZE 4781-85A is a manual-reading miter protractor used in metalworking, woodworking, and fabrication to measure and transfer angles from 0° to 180° with 1° graduations. Its steel construction and +/-0.3° accuracy make it suitable for layout, inspection, and setup tasks in machine shops and quality control.

What are the specifications of the INSIZE 4781-85A protractor?

The INSIZE 4781-85A has an 8.110-inch blade length, measures 0° to 180°, with 1° graduations and +/-0.3° accuracy. It is made of steel. The manufacturer part number is 4781-85A. This manual-reading miter protractor is designed for precise angle measurement in industrial applications.

Where to buy the INSIZE 4781-85A protractor worldwide?

3G Electric supplies the INSIZE 4781-85A protractor worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your facility. Contact us for availability and lead time. We source genuine INSIZE instruments to meet your measurement needs.

How to maintain the INSIZE 4781-85A steel protractor?

To maintain the INSIZE 4781-85A steel protractor, keep it clean and dry after use. Apply a light rust-preventive oil to the blade and pivot. Store in a protective case to avoid nicks or bending. Periodically check accuracy against a known standard. Avoid dropping or exposing to excessive moisture.

Used in

Common applications for INSIZE
Quality control inspection — INSIZE digital calipers (1118-150R) for dimensional checks on machined parts.
Machine tool setup — INSIZE dial test indicators (2380-301) for aligning workpieces and measuring runout.
Hardness testing verification — INSIZE hardness test blocks (HDT-B-HV30D) for calibrating Vickers testers.
Layout and marking — INSIZE precision steel squares (4745-1120) for checking 45° angles on fixtures.
Workpiece holding — INSIZE magnetic V-blocks (6889-2) for securing cylindrical parts during measurement.
Groove and recess measurement — INSIZE small point jaw calipers (1169-150) for measuring internal features.

INSIZE Products

3G Electric supplies INSIZE manual-reading miter protractors. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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