Engineering & Die Design — Small Parts, Inc.
Engineering & Die Design

Engineering that improves your products.

Our integrated engineering team works directly with customers to improve manufacturability, optimize materials, reduce costs, and increase reliability.

Design for Manufacturability

From concept to production.

Bring us your toughest part early. The earlier we’re involved, the more cost we can take out and the more reliability we can build in. Our engineers partner with your team to refine geometries, optimize material selection, and design tooling that holds up under millions of cycles.

Improved manufacturability results in higher quality, lower cost, and better delivery — not just dimensional tolerances on paper, but a process that delivers them every time.

“We engineer the manufacturing process to achieve your specifications — not just dimensional tolerances — in a repeatable process. Then we monitor and manage that process because our values demand nothing less.”

Wire Machine
Our Engineering Process

Five steps from print to production.

Every program follows the same disciplined path — so timing is predictable, quality is engineered in, and surprises happen on the bench, not on the line.

01
Feasibility Review
Print review, material assessment, DFM feedback before quote.
02
Die Design
3D CAD modeling, strip layout, tool path simulation.
03
Build & Tryout
In-house fabrication, wire EDM cutting, first-piece sample.
04
PPAP & Qualification
Capability studies, dimensional reports, customer approval.
05
Production & Support
Run-at-rate, change management, and our Continuous Improvement Program driving out cost over the life of the program.
Our Engineering Advantage

Three reasons we deliver faster.

What sets our engineering team apart isn’t headcount — it’s how the pieces fit together to react quickly, launch reliably, and support every facility from one team.

01
In-House Tooling

With in-house tooling design & build, in-house automation, and manufacturing engineering all under one roof, we react faster to program changes and keep tooling close to the team that runs it.

10 Wire EDM · 24/7 Capability
02
Concurrent Engineering

We bring you to full production faster and more reliably through integrated, concurrent engineering — design, tool build, process, and quality working the same problem at the same time.

Dedicated Design Engineers
03
Cross-Border Support

Tooling support capabilities on site in Mexico mean faster turnaround, reduced downtime, and the same engineering standards across every facility — same quality and service whether you need product from the U.S. or Mexico.

4 Facilities · U.S. & Mexico
In-House Tooling

Design, build, repair — under one roof.

From the first 3D model to the final die qualification run, our tool and die team supports every program. That means changes happen faster and repairs happen sooner. And because we service the die for life — that means we maintain and repair every tool for the entire life of the program.

By the Numbers
10
Wire EDM Machines
24/7 Capability
4
Facilities Supported
U.S. & Mexico
65+
Years Building Dies
Since 1958
Engineering Services

What we offer.

A full engineering partnership across the lifecycle of your part — from feasibility through volume production and program transitions.

Tell us where you are and what’s getting in the way. We’ll meet you there.

Die Design for Manufacturability
Geometry, draft, and feature optimization before tool build.
Tool & Die Engineering
Strip layout, progression, and tool development.
Prototype Development
First-piece samples and process optimization.
Material Selection
Alloy choice for cost, performance, and life.
Tariff Mitigation
Sourcing strategies that reduce tariff exposure.
Materials Optimization
Coil width, gauge, and yield improvements that reduce scrap.
Tooling Support in Mexico
Onsite tool repair and change management.
Rapid Production Scaling
From prototype to millions of parts per year.
Continuous Improvement Program
Ongoing process refinement that drives out cost, scrap, and variation year over year.
Die Service for Life
We maintain, repair, and service every die we build for its entire production life.
Ready to Engineer Smarter?

Talk to an engineer.

Send us a print, share your bill of materials, or describe the problem you’re trying to solve. We’ll route you to the right engineer and follow up within one business day.