Roughness Ra 3.2 vs Rz 16 | Surface Finish Engineer T-Shirt

100% Airlume Combed Ring-Spun CottonLightweight

  • Navy t-shirt with Ra 3.2 vs Rz 16 roughness symbols and “If you know the difference” text. For STEM
  • Man in navy t-shirt with Ra 3.2 vs Rz 16 roughness symbols and “If you know the difference” text. For STEM
  • Woman in navy t-shirt with Ra 3.2 vs Rz 16 roughness symbols and “If you know the difference” text. For STEM
  • Close up of navy t-shirt with Ra 3.2 vs Rz 16 roughness symbols and “If you know the difference” text. For STEM
  • Man in black t-shirt with Ra 3.2 vs Rz 16 roughness symbols and “If you know the difference” text. For STEM
  • Woman in black t-shirt with Ra 3.2 vs Rz 16 roughness symbols and “If you know the difference” text. For STEM
  • Close up of black t-shirt with Ra 3.2 vs Rz 16 roughness symbols and “If you know the difference” text. For STEM
  • Man in white t-shirt with Ra 3.2 vs Rz 16 roughness symbols and “If you know the difference” text. For STEM
  • Woman in white t-shirt with Ra 3.2 vs Rz 16 roughness symbols and “If you know the difference” text. For STEM
  • Close up of white t-shirt with Ra 3.2 vs Rz 16 roughness symbols and “If you know the difference” text. For STEM
1 10
€25,95 EUR
€25,95 EUR
Rea Slutsåld
Tullavgifter och skatter ingår. Frakt beräknas i kassan.
5.0 (6 store reviews)
Color
Size

Shipped from the EU

Size Guide

Height: 5'5" (165cm)

Chest circumference: 34.2" (87cm)

Waist circumference: 25.2" (64cm)

Hips: 37" (94cm)

Height: 6'1" (185cm)

Chest circumference: 39.4" (100cm)

Waist circumference: 30.3" (77cm)

Hips: 36.6" (93cm)

Spec Block

Design Story

Built for engineers who know Ra tells the average story, but Rz exposes the ugly peaks and valleys that actually kill parts.

Some people see two weird triangles on a drawing. Others instantly know that Ra 3.2 talks about overall texture while Rz 16 screams “watch the peaks and valleys.” This engineer t-shirt is a secret handshake for the surface finish nerds who argue about profile parameters in front of the CMM. If they get the joke, they’re your kind of engineer.

Use Case

Best For

Best for quality engineers, metrology specialists, and precision machinists who care where the extremes live, not just what the Ra number says.

  • Mechanical and quality engineers reading surface finish callouts all day.​
  • CNC machinists adjusting feeds and toolpaths to hit Ra and Rz specs.​
  • Metrology and QA lab staff explaining roughness charts to the rest of the plant.​
  • Engineering students who just discovered there’s more to life than Ra.

Signal

Gift Guide

A laser‑targeted gift for CMM operators, surface finish nerds, and QA leads who’ve explained Ra vs Rz more times than they can count.

Perfect engineer gift for anyone who lives in the QA lab or stands by the profilometer. Ideal mechanical engineer t-shirt or machinist apparel for shops where Ra vs Rz debates are a daily sport. Great pick for STEM grads who went a little too deep into GD&T and surface finish.

Produkt-specifikationer

The Premium Fit You Deserve.

This isn't just another stiff shirt. We use the Bella+Canvas 3001, renowned for its incredibly soft, broken-in feel right out of the box.

  • Fit & Feel: Retail Fit (Unisex) – True to size with a slightly tailored cut. Not too boxy, not too tight.
  • Premium Fabric: 100% Airlume combed & ring-spun cotton (4.2 oz/yd²). Pre-shrunk to minimize shrinkage.
  • Durability: Side-seamed construction with shoulder-to-shoulder taping for lasting shape.
  • Ethical Sourcing: Dyed & Cut in the USA, assembled in Nicaragua/Honduras/Guatemala.
  • Printed with Care: Printed locally to ensure faster shipping and reduced carbon footprint.

Model Reference: Bella+Canvas 3001 (The Gold Standard of Premium Tees).

Vaschhandledning

  • Wash 30C Icon

    Wash cold (30°C / 86°F), inside out, with similar colors.

    Use mild detergent. No bleach. No softeners.

  • No Bleach Icon

    Do not use bleach. It can damage fiber integrity.

    Tip: Use oxygen-based stain removers if necessary.

  • Tumble Dry Low Icon

    Tumble dry Low or Hang dry (Recommended).

    Optimum: Flat air dry to preserve fiber tension.

  • Iron Low Icon

    Iron on Low Heat if needed. Do NOT iron prints.

    Fabric naturally resists wrinkling post-wash.

  • No Dry Clean Icon

    Do not dry clean. Chemical solvents damage prints.

  • Eco Ink Icon

    Water-based inks.

    A faint scent may be present after printing and typically dissipates after the first wash.

"Treat your gear like hardware. Maintain it."

Certifieringar (komponentnivå)

The certifications below apply exclusively to the blank garment manufacturer and inks. The final printed product sold by grabNade is not independently certified.

• WRAP (Worldwide Responsible Accredited Production): The blank garment (Bella+Canvas 3001) is manufactured in WRAP-Platinum certified facilities, ensuring ethical, humane, and lawful conditions.
• FLA (Fair Labor Association): Bella+Canvas is an accredited FLA Participating Company, committed to upholding the highest labor standards globally.
• Eco-Friendly Dyes: The dyeing process uses bluesign®-approved dyes only, ensuring strict chemical safety and reduced water impact.
• Printing Safety: Our printing partners use water-based inks that are OEKO-TEX® Eco Passport certified, safe for adults and children.

Note: Any slight scent from the fixation agent is normal and disappears after the first wash.
More info: Supplier Certifications

Product Datasheet
StyleUnisex Regular T-Shirt
FitUnisex · Airlume 142 GSM
Blank ReferenceBella+Canvas 3001
Third-Party Certifications , WRAP, FLA, bluesign®, OEKO-TEX® Eco Passport · View supplier certifications
ProductionPrint on demand · Ethical manufacturing
BrandgrabNade
Product Safety (EU / GPSR)

Age Restrictions

  • For adults only.

EU Warranty

  • 2 years statutory warranty in accordance with EU consumer law.

EU Product Safety & GPSR Compliance

In compliance with the General Product Safety Regulation (GPSR), grabNade and SINDEN VENTURES LIMITED ensure that all consumer products offered are safe and meet EU standards.

For any product safety related inquiries or concerns, please contact our EU representative:
📧 gpsr@sindenventures.com

320, rue Saint-Honoré, 75001 Paris, France
— or —
Markou Evgenikou 11, Mesa Geitonia, 4002, Limassol, Cyprus

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Ra vs Rz: Vad är den verkliga skillnaden?

Ra vs Rz: Vad är den verkliga skillnaden?

Vad är den verkliga skillnaden mellan ytråhet Ra och Rz? Medan Ra (medelvärdesavvikelse) ger ett allmänt genomsnitt, fångar Rz (medelvärde av topp till dal) de...

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