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Clear plastic protractor with 6 inch ruler base and black graduations

Sparco Products

Sparco Products 1490 protractor with 6" ruler base

SKU CH-A1TQ-7EZ1S MPN 1490

Clear plastic protractor with an open centre, raised black graduations and an accurate 6" ruler base for precise angle measurement

  • Open-center design simplifies angle alignment
  • 6-inch ruler base adds straight-edge utility
  • Black-bonded graduations ensure clear, precise readings
  • Crystal-clear plastic body resists wear for lasting accuracy

Professional protractor with ruler base

This transparent plastic protractor carries the Sparco 1490 model number and combines an open centre with a built-in 6" ruler along its base. Raised black graduations are bonded into the crystal-clear material for precise angle measurement and straight-edge work.

Students, drafters and hobbyists needing one tool

Users who require digital read-outs, adjustable arms or metal construction should consider other instruments. Buyers looking for larger rulers or specialised navigation scales will need a different product.

How it compares

Measured against everything we stock in Calculators & Classroom Supplies, at today’s prices. Recalculated every night.

Price $1.99
Cheaper than about 99% of the 1,255 comparable items (median $25.99).

Specifications

Product
Brand nameSparco
Size & build
Shipping weight0.02 kg
Package size127 × 94 × 61 mm

Questions about this item

Will the 6" ruler base on the Sparco 1490 align with the scale on my older technical drawing board?

The 6" ruler base provides a straight edge marked in inches that can be placed against any drawing surface to check alignment or transfer measurements directly.

How can I verify the graduations on the Sparco 1490 are accurate after unpacking?

The black-bonded graduations are sharply defined and raised; compare a known angle such as 90° against a trusted square or the corner of a sheet of paper to confirm they read correctly.

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