Rough Day Ra 12.5 | Funny Engineer T-Shirt

100% Airlume Combed Ring-Spun CottonLightweight

  • Black t-shirt featuring "Rough Day" text and an Ra 12.5 rough machining surface finish symbol.
  • Man in black t-shirt featuring "Rough Day" text and an Ra 12.5 rough machining surface finish symbol.
  • Woman in black t-shirt featuring "Rough Day" text and an Ra 12.5 rough machining surface finish symbol.
  • Close up of black t-shirt featuring "Rough Day" text and an Ra 12.5 rough machining surface finish symbol.
  • Man in navy t-shirt featuring "Rough Day" text and an Ra 12.5 rough machining surface finish symbol.
  • Woman in navy t-shirt featuring "Rough Day" text and an Ra 12.5 rough machining surface finish symbol.
  • Close up of navy t-shirt featuring "Rough Day" text and an Ra 12.5 rough machining surface finish symbol.
  • Man in white t-shirt featuring "Rough Day" text and an Ra 12.5 rough machining surface finish symbol.
  • Woman in white t-shirt featuring "Rough Day" text and an Ra 12.5 rough machining surface finish symbol.
  • Close up of white t-shirt featuring "Rough Day" text and an Ra 12.5 rough machining surface finish symbol.
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$29.99 USD
$29.99 USD
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🚀 Free shipping over $75 · Shipped from the US

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 the engineer who measures rough days in Ra values and heavy cuts, not in emails.

Sometimes the spindle load is in the red, the tool chatters like crazy, and you're just trying to hog out material as fast as the machine allows. In machining, Ra 12.5 is a heavy roughing cut. In life, it’s exactly what your Tuesday felt like. This engineer t-shirt is the unofficial uniform for those days when the tolerances are out the window, the line goes down, and you’re just trying to survive until the shift ends. It’s been a rough day; let the shirt do the complaining for you.

Use Case

Best For

Best for machinists, manufacturing engineers, and quality techs who know Ra 12.5 kind of rough is still within print — just not within mood.

  • CNC machinists pushing feed rates during heavy roughing operations.
  • Mechanical engineers having a genuinely terrible day dealing with change orders.
  • Maintenance technicians who just spent eight hours extracting a broken tap.
  • Plant supervisors dealing with Monday morning production meetings.

Signal

Gift Guide

A spot‑on gift for CNC operators, process engineers, and inspectors who’ve had more Ra 12.5 days than they’ll ever admit.

This is the ultimate funny engineer shirt for the coworker who always seems to be putting out fires. A perfect piece of machinist apparel or an empathetic engineer gift idea for the stressed-out professional in your life. It’s highly relatable manufacturing workwear that guarantees a knowing nod from anyone on the shop floor.

Product Specifications

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).

Washing Instruction

  • 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."

Supply Chain Certifications (Component-Level)

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
Style Unisex Regular T-Shirt
Fit Unisex · Airlume 142 GSM
Blank Reference Bella+Canvas 3001
Third-Party Certifications WRAP, FLA, bluesign®, OEKO-TEX® Eco Passport · View supplier certifications
Built For Mechanical Engineering
Production Print on demand · Ethical manufacturing
Brand grabNade
View full details

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