Contact Us
Let's Build Something Great
Tell us about your project. We respond to all inquiries within 24 hours — often the same business day.
Tombyll Plastics, Inc.
We're Ready to
Help You
Whether you have a finished CAD file or just a concept sketch — we can help. Our team will review your project and provide honest feedback along with a detailed quote.
Phone
(909) 381-4700
Business Hours
Monday – Friday
8:00 AM – 3:30 PM PST
8:00 AM – 3:30 PM PST
Nearest Airport
Ontario International (ONT)
~15 miles west
~15 miles west
What to send us
CAD files (.STEP, .SolidWorks, .STL, .DXF)
Product drawings or sketches
Physical sample or reference part
Quantity requirements (first run & annual)
Target price or budget range
Material requirements or preferences
Request a Free Quote
We'll review your project and respond within 24 hours.
Before You Contact Us
Common questions we receive about working with us:
How quickly can you quote?
We review and quote most projects within 24–48 business hours.
Do you accept CAD files?
Yes — STEP, SolidWorks, STL, DXF, IGES, and most other formats.
Is there a minimum order?
No minimum for prototyping. MOQ of 1,000 units for production runs.
Can you start from a sketch?
Yes. We can design, CAD model, prototype, and produce from a rough sketch.
Do you work with startups?
Absolutely. We love helping new product developers get to market.
Are quotes free?
Yes — all project reviews and quotes are completely free of charge.