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  • Kearing OEM Plastic Set square Scales / Sew Scale Ruler 1: 3,plastic Transparent Triangle Scale Ruler # DM20
  • Kearing OEM Plastic Set square Scales / Sew Scale Ruler 1: 3,plastic Transparent Triangle Scale Ruler # DM20
  • Kearing OEM Plastic Set square Scales / Sew Scale Ruler 1: 3,plastic Transparent Triangle Scale Ruler # DM20
  • Kearing OEM Plastic Set square Scales / Sew Scale Ruler 1: 3,plastic Transparent Triangle Scale Ruler # DM20
  • Kearing OEM Plastic Set square Scales / Sew Scale Ruler 1: 3,plastic Transparent Triangle Scale Ruler # DM20
Kearing OEM Plastic Set square Scales / Sew Scale Ruler 1: 3,plastic Transparent Triangle Scale Ruler # DM20

Kearing OEM Plastic Set square Scales / Sew Scale Ruler 1: 3,plastic Transparent Triangle Scale Ruler # DM20

$2.50-$3.50/ Piece|1000 Piece/Pieces(Min. Order)
View product details

Kearing OEM Plastic Set square Scales / Sew Scale Ruler 1: 3,plastic Transparent Triangle Scale Ruler # DM20

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Precision Measurement & Angle Drawing: Equipped with centimeter/millimeter scales and a triangular design, the ruler enables accurate drawing of straight lines, perpendicular lines, and angles up to 90°, ideal for technical drafting and engineering tasks.
  • Multi-Use Scale Capability: Combines features of a scale ruler and triangular ruler, supporting both measurement and geometric construction in projects requiring proportional scaling (e.g., 1:3 scale models).

Key features

  • 1. Transparent Material Technology

    • With transparent, durable plastic material, ensure clear visibility of lines and angles while maintaining lightweight portability. ~30% lighter than metal rulers*

  • 2. Precision Interactive Design

    • With a classic triangular design featuring dual cm/mm measurement scales, easily draw precise angles and straight lines with confidence.

  • 3. High-Accuracy Performance

    • With a 0-90° angular measurement capability and millimeter-precision scales, achieve exact technical drawings for architectural and engineering projects.

  • 4. Customization Scenario Solutions

    • With customization options for branding (e.g., logos, contact details), create personalized rulers for corporate gifts or OEM projects tailored to specific needs.

  • 5. OEM-Certified Quality Standards

    • Certified to OEM quality standards, ensuring reliability and consistency for professional applications and bulk orders.

Product details

Kearing OEM Plastic Set square Scales / Sew Scale Ruler 1: 3,plastic Transparent Triangle Scale Ruler # DM20

The Kearing OEM Plastic Set Square Scales Ruler # DM20 is a precision tool designed for technical drawing, engineering, and educational use. Crafted from transparent plastic, it combines durability with visibility, enabling accurate measurements and angle drawing. Available in a set, it supports customization for branding or specialized applications.

Technical specifications

FeatureSpecificationApplication Scenario
MaterialHigh-clarity polycarbonate plasticTechnical drawing requiring visibility over existing work
DesignTriangular shape with 2 equal sidesDrawing perpendicular/parallel lines
Measurement ScalesCentimeter/millimeter markings on edgesPrecision engineering and drafting
DurabilityScratch-resistant surfaceHeavy-use environments like workshops
CustomizationLogo and text imprintingCorporate branding or educational kits

Customization guide

Adjustable logo placement and color options to meet corporate branding needs. Add custom markings or scale increments for specialized applications.

Get inspired

Ideal for architects, engineers, and students, this ruler ensures precision in every line and angle. Its transparency allows seamless alignment over complex drawings, while its lightweight design reduces fatigue during extended use.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Material DurabilityStandard plasticReinforced polymerPremium polycarbonate
Measurement Precision±1mm accuracy±0.5mm accuracy±0.1mm accuracy
Customization OptionsLogo imprintingCustom scale markingsFull surface engraving
Weight20g22g18g*

Supplier's note

  1. Technical Breakthroughs:

    • Transparent polycarbonate: 20% lighter than traditional metal rulers, enhancing portability.
    • ±0.1mm precision scales: Triple the accuracy of standard models, critical for aerospace engineering.
    • Full surface engraving: Enables customized scales for niche industries like microelectronics.

  2. Version Selection Guide:

    • Base Model: Ideal for students or occasional users needing basic functionality.
    • Advanced Model: Suited for professionals requiring durability and intermediate precision (e.g., mechanical drafting).
    • Pro Model: Best for high-precision fields like aerospace or R&D, where micron-level accuracy and customization are essential.

With the Pro’s ±0.1mm precision, you can ensure flawless alignment in complex blueprints. Pair its lightweight design with reinforced edges to reduce tool fatigue during marathon design sessions.

Frequently asked questions

  • Which triangular ruler model is best for architects or engineering students?

  • How to clean a plastic triangular ruler without damaging its scales?

  • Plastic vs. metal triangular rulers: Which is better for visibility during drafting?

  • Can I customize the Kearing OEM Plastic Set Square with a company logo?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Standard Triangular RulerBasic technical drawingPlastic material (ASTM D6470), 15cm/6in length, 30°-60°-90° anglesCost-effective, lightweight, translucent for visibilityLimited durability (▲), no customization options
Precision Engineering ScaleArchitectural draftingStainless steel edges (ISO 3298), dual metric/imperial scales, ±0.1mm accuracyExtremely precise, scratch-resistant, ▲ durability vs plastic rivalsHeavier, opaque, 2x price premium
Customizable Branding RulerCorporate giveawaysHDPE material (ASTM D6470), UV-printed logos (ASTM D6902), 0.5mm thicknessFull-color branding, ▲ transparency (98% ISO 13469), bulk pricingLimited shape customization, 100-unit MOQ
Lightweight Field RulerOutdoor measurementsReinforced polycarbonate (ASTM D7014), 1.2mm thickness, weatherproof coating▲ Impact resistance vs standard plastic, floats in waterSlightly less precise (±0.5mm), not suitable for detailed work
Multi-Scale Academic ToolClassroom geometry educationTriple-scale (cm/mm/inch), 45°-45°-90° isoceles design, 0.3mm line resolutionIdeal for students, ▲ visibility of markings, affordableThin profile (1.5mm) may bend under heavy pressure
Durable Industrial GaugeManufacturing QC inspectionsFiberglass-reinforced plastic (ASTM D790), 3mm thickness, 150°C heat resistance▲ Heat/wear resistance, retains shape over timeHeavy, 3x cost of basic models, requires calibration checks

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