
Keystone Machine & Tool
High-Mix, Low-Volume CNC Machining. Fast.
We manufacture precision-machined parts in the quantities you actually need — 1 to 100+ pieces, often with multiple part numbers. Specializing in fast turnarounds, tight tolerances, and direct communication with the machinist running your job. Get a quote within 24 hours.
Quotes in 1 Business Day · No Minimum Order · Direct Machinist Access
About Us

Keystone Machine and Tool is a CNC shop in Greensburg, PA specializing in high-mix, low-volume machining with fast turnaround.
We focus on the 1-to-100-piece jobs that keep engineering teams moving — prototypes, production parts, and engineering-change work that needs to get made without sitting in a queue for weeks.
Our goal is simple: make quality parts quickly and keep the process moving.
We work directly with engineers and buyers, keeping communication straightforward and decisions fast. No unnecessary handoffs, no waiting days for an answer, and no wondering where your job stands.
Why Keystone?

Keystone was founded on the idea that smaller machining jobs shouldn't get buried behind larger production schedules.
The shop was built around a different model — one specifically designed for high-mix, low-volume work where responsiveness and turnaround actually matter.
We're constantly looking for ways to reduce lead times and keep jobs moving. Lead times are killers. We want to kill them. That means improving processes, eliminating unnecessary delays, and staying responsive when things change.
Every job gets direct attention from quote through production. When a question comes up, you can get an answer. When something changes, we can react. And when we commit to a timeline, getting the parts out the door is the priority.
Keystone is built for the jobs that need to move.
Core Capabilites
Small Batch & Prototype Production
1 to 100+ Parts, No minimum
We specialize in low-volume and prototype runs for engineers who need to validate a design fast and move into production without waiting weeks for a quote
Precision CNC Milling
Tolerances to +/-.0005
3 and 4-axis milling on aluminum, steel, stainless, and plastics, from single prototypes to short production runs.
Digital Process Control & Quality Tracking
Every order follows the same workflow
Every job runs through a documented digital quality management system built to ISO 9001 principles, from quote to shipment.
Custom Tooling and Fixturing
Built In-House, No outside lead time
Custom fixtures designed and built here, so complex or repeat jobs don't wait on a third party.
FAQs
How do I request a quote?
Upload your drawing or CAD file along with quantity, material, and need-by date using the form below. We'll get back to you within one business day.
Do you offer expedited lead times?
Yes - most rush jobs are quoted same day, and we'll tell you honestly whether we can hit your deadline before you commit.
What materials do you work with?
Aluminum, stainless steel, tool steel, brass, engineering plastics - matched to your part's requirements.
Get a free quote today
Need parts fast, in the quantity you actually need? Submit an RFQ below with your drawing, quantity, and material — we'll get back to you within one business day.
Or call us at (660) 591-2750
