---
title: "How Can a Factory Tell Whether a Recurring Defect Comes from Tool Wear or Material Variation?"  
description: "How Can a Factory Tell Whether a Recurring Defect Comes from Tool Wear or Material Variation?"  
author: "Henrik Lindholm"  
published: 2026-10-15  
canonical: https://answers.mindstick.com/qa/117560/how-can-a-factory-tell-whether-a-recurring-defect-comes-from-tool-wear-or-material-variation  
category: "Mix Category"  
tags: ["manufacturing", "quality control", "Production Engineering"]  
reading_time: 1 minute  

---

# How Can a Factory Tell Whether a Recurring Defect Comes from Tool Wear or Material Variation?

We’re seeing a small but persistent increase in dimensional defects on a metal stamping line. The problem appears on more than one shift, but it is not present on every part. The tooling has been in service for a while, and the latest material batch came from a different supplier.

What measurements or checks would help separate **tool wear from material variation**? I’m interested in practical ways to investigate the process without changing several settings at once and making the cause harder to identify.


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Original Source: https://answers.mindstick.com/qa/117560/how-can-a-factory-tell-whether-a-recurring-defect-comes-from-tool-wear-or-material-variation

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