Quality isn't a department at Digital Machine — it's built into every step of our process. From reviewing your drawings and programming toolpaths, through in-process checks and final inspection, we verify that every dimension meets your specification.

Our QC Process

Quality built in from first review to final ship

Drawing Review & Programming

Every job starts with a thorough review of your drawings and specifications. We identify critical dimensions, GD&T callouts, and material requirements before the first chip flies. Toolpaths are programmed with proper approach angles, feed rates, and tool selection to achieve the surface finishes and tolerances your part demands.

Engineering blueprint showing precision tolerances and cross-section

In-Process Inspection

Critical dimensions are checked during machining, not just after. Dial indicators, bore gauges, and micrometers verify features as they're cut — catching issues before they compound so corrections happen in real time.

Final Inspection & Verification

Every completed part is inspected against your drawing. Our Numerex CMM, Keyence optical measurement system, and calibrated hand tools verify all dimensions. Complex geometries and tight tolerances get three-axis touch-probe accuracy before sign-off.

Numerex CMM coordinate measuring machine performing dimensional inspection

Documentation & Ship

Every critical dimension is ballooned and verified against your drawing. Full first-article inspection reports provided on request. Parts are cleaned, packaged, and shipped with documentation — ready for your assembly line.

Engineering inspection report with GD&T callouts and 3D part views

Inspection Equipment

Precision metrology tools that back up every measurement

Numerex CMM Featured

Coordinate measuring machine for precision dimensional inspection. Three-axis measurement system for complex geometries and tight tolerance verification.

3-Axis Touch Probe | Sub-Thousandth Accuracy

Starrett Sigma HB400 Featured

16" screen optical comparator for profile, contour, and edge inspection. Verifies thread forms, radii, and complex profiles that calipers can't catch.

16" Screen | Profile & Contour Inspection

Rockwell HR-150A Hardness Tester

Verifies material hardness after heat treating and confirms incoming stock meets spec. A/B/C scale testing with certification.

Hardness

Mitutoyo Digital Height Gauges

Sub-thousandth precision height and step measurements on calibrated granite surface plates.

Measurement

Calibrated Granite Surface Plates

Grade A inspection-quality granite surfaces providing the reference datum for all precision measurements.

Reference

Tolerances We Hold

±0.005" Standard Tolerance

Default for non-critical dimensions unless otherwise specified on the drawing.

±0.001" Precision Tolerance

Routinely held on critical features. Our bread and butter for precision work.

±0.0005" Ultra-Precision

Achievable on critical features with CMM-verified inspection and controlled processes.

Quality & Inspection