Resources
Practical guides for buying and specifying cutting tools
Short, practical explanations of the insert codes, terminology and choices that come up most often when specifying CNC and VMC cutting tools.
15 January 2026
How to Read a Carbide Insert ISO Code
Every carbide turning insert code — CNMG 120408, TNMG 160404, CCMT 09T304 — follows the same ISO 1832 structure once you know where to look. Here's how to read it.
Read article →22 January 2026TNMG vs CNMG Inserts — What's the Difference?
TNMG and CNMG inserts look similar on a parts list but differ in shape, edge count and where each one makes the most sense on the lathe.
Read article →2 February 2026What Is a PCD Insert?
PCD inserts use a diamond cutting tip rather than a carbide edge, and they're built for one job: long-life aluminium and non-ferrous machining.
Read article →Coming soon
- CCMT vs CCGT Inserts
- Choosing Inserts for Aluminium Machining
- Understanding Insert Nose Radius
- Positive vs Negative Cutting Inserts
- How to Select a Turning Insert
- Carbide Insert Grades Explained