Most buyers ask for “standard tolerances” and assume that settles it. It doesn’t.
There’s no universal number that fits your part, only what the material, the geometry, and the tool will actually let you hold. Ask for standard, and you’ll get the widest band the process gives away.
The molding shops that don’t explain this up-front will be the same ones that hand you a bad first sample and a change order →
Walk the floor at Shot Show, and you’ll see the same polymer DNA everywhere. Glock frames, Magpul stocks, Safariland holsters—all built on glass-filled nylon. The industry didn’t just drift here. It sprinted.
If you’re designing tactical parts for firearms, you’re not in the business of reinvention. You’re in the company of domination—where “what works” beats “what if.” Glass-filled nylon isn’t just the material of choice; it’s the kill switch on every →
Pick up any new product and your fingers are already doing recon. Before your eyes process the shape or the label, your hands are judging: Is this solid or is it junk? Did someone sweat the details, or did they just phone it in?
With plastics, “feel” isn’t just a designer’s daydream. It’s a direct result of what happens with your mold design. Treat it like an afterthought, and you’ll lose →
A mold never fails when it’s convenient. It fails on a Friday night, with a truck slot booked, labor scheduled, and your customer breathing down your neck. In that moment, you don’t want a brochure claim — you want a warranty that actually keeps you running.
The catch? Not all warranties mean the same thing, and not all promises are anchored to reality.
If you understand how molds are →
You’ve been there—opening a fresh shipment of plastic parts, admiring the flawless finish, the glossy sheen, the absolute perfection of every edge… only to have one crack under pressure or refuse to fit where it should.
Looks can deceive. In the world of injection molding, a part that appears perfect can still conceal flaws that can lead to expensive failures down the line. Today, let’s tear off the mask and talk →
Here’s the dirty little secret most injection mold buyers never hear:
Chasing the lowest mold quote is like penny-pinching on shoes and wondering why you keep getting blisters. The upfront price tag might look appealing, but it’s the hidden costs—in wasted resin, sluggish cycle times, and endless fixes—that eat away at your profits.
At H&H Molds, we don’t just build molds; we engineer profit machines.
Let’s pull back the curtain on how up-front →
Modern agriculture is a battlefield. Between the UV-blasted fields, corrosive chemicals, dust, and machinery vibration – agricultural plastic injection components are constantly under fire.
If a part cracks, warps, or degrades too quickly, it can bring an entire system down—or, at the very least, cost a farmer time they can’t afford to lose.
You probably don’t think much about the plastic handle on that seed spreader or →
H&H Molds, Inc.
119 S. Adams Rd.
Spokane Valley, WA 99216
Phone: 509-924-3770
Fax: 509-924-4174
