Product Announcement: Engineering Reference Cards



Omnia Manufacturing



Products Announced:

Wallet Sized Weld Symbol Reference Card

Wallet Sized GD&T Symbol Reference Card

Wallet Sized Drill & Tap Chart Card


$7.99 each

Bulk order discounts available – contact


3.50 in. x 2.00 in.

Material: stainless steel

Chemically/laser etched

Silk screened symbols

Announcement: We have recently released new wallet sized stainless steel engineering reference cards for purchase in our store! Use them as durable reference cards while in the field or as convenient reference information while in the office. Reference information includes: weld symbols, GD&T symbols, and a drill & tap chart.


Durable and clearly defined reference cards make available common and uncommon weld symbols, GD&T symbols, and drill & tap information anywhere you happen to be. Engineers, drafters, welders, machinists, and anyone who works with engineering drawings has questioned symbols and other information present. Use these cards to compare symbols side-by-side without needing to take your phone out or run to a wall mounted poster.

Custom ordering is available.

Add your company name, logo, and/or some contact information to the front of the card. Separate your company from bland conference and company-wide giveaways and hand out something useful.


Wallet Sized Weld Symbol Reference Card:

Front – Welding symbols and names
Back – Labeled elements of a welding symbol

Wallet Sized GD&T Symbol Reference Card:

Front – Geometric dimensioning and tolerancing (GD&T) feature symbols
Back – GD&T feature symbols continued, tolerance modifier symbols, and labeled element of a GD&T symbol

Wallet Sized Drill & Tap Chart Card:

Front – 0-80 tap to 1/4-28 tap
Back – 5/16-18 tap to 1 1/8-7 tap

All drill and decimal equivalents for tap sizes from 0-80 to 1 1/8-7

About OmniaMFG

Omnia Manufacturing is a mechanical design and manufacturing blog/reference resource. Topics discussed span from welding to geometric dimensioning and tolerancing to 3d printing and more. Website:


Jarrett Linowes
Mechanical Engineer

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