Thread Turning Tools for CNC Lathes

When engineers and CNC machinists search for thread turning or threading in a lathe, they’re not just looking for general information—they want practical, high-performance solutions that improve precision, cycle time, and tool economy. At Scandinavian Tool Systems AB (STS), we deliver exactly that. 

Optimized Threading Tools – Designed for Real-World Challenges 

Whether you’re threading small diameters in high-nickel alloys or need consistent performance across high-volume runs, STS offers reliable, innovation-driven tooling systems. All our products are developed and manufactured in Sweden and distributed globally across 40+ countries. 

We serve CNC workshops, automotive suppliers, aerospace, energy sectors, and anyone requiring tight-tolerance threading performance. 

QuadCut® – Redefining External & Internal Thread Turning 

Traditional threading inserts are often triangular and horizontally mounted. STS broke this convention with the QuadCut®: 

  • Upright, square insert for stronger cutting action 
  • Four usable edges = longer insert life and lower cost per thread 
  • Stable insert mounting minimizes deflection and improves surface finish 
  • Available for internal and external threading, with ISO, UN, ACME, Whitworth, and NPT profiles 

QuadCut’s compact design is perfect for tight setups like Swiss-type lathes or operations near chuck jaws. 

TwinCut® – For Large Pitch Threads in Small Bores 

TwinCut® is STS’s patented solution for threading in tight internal diameters where large pitch threads are required. The system features: 

  • Dual cutting edges for efficiency 
  • Precise indexing for repeatability 
  • RH and LH threading options 

Ideal for oil & gas, hydraulics, and powertrain applications where deep threads and precision matter. 

LATUMA® Coating – Performance Under Pressure 

For materials like stainless steel and heat-resistant superalloys, LATUMA® coating enhances your tool’s thermal stability and wear resistance. 

  • Withstands higher cutting speeds 
  • Prolongs tool life 
  • Reduces oxidation and crater wear 

Choose LATUMA-coated inserts for superior performance in demanding thread turning operations. 

STS Thread Milling Tools – Flexibility Meets Accuracy 

Need to machine threads on parts with interrupted cuts, thin walls, or exotic materials? STS also offers a full line of thread milling tools for CNC machining centers and driven-tool lathes. 

Advantages include: 

  • Full control over thread profile and diameter 
  • Lower cutting forces than thread turning 
  • Ideal for low-volume and prototype production 

Why Professionals Choose STS Thread Turning Tools 

Patented geometries like QuadCut® and TwinCut® 

Swedish-made tools with a focus on precision and repeatability 

High-value per insert – longer tool life, fewer tool changes 

Global availability and support 

Whether you’re programming G76 cycles or switching between thread standards, STS gives you the tools to do it right—the first time. 

Get Expert Support for Your Threading Needs 

Need help selecting the right threading insert for your next job? Want to reduce your cost per thread while improving output quality? Contact Scandinavian Tool Systems  we’re here to help you make threading more efficient. 

info@scandinavian-tool.se