Static turning tool holders
Static turning tool holders secure your inserts and boring bars on the turret. On modern CNC lathes, these are often based on BMT or VDI interfaces, which define how the holder mounts to the machine.
High-performance static holders are designed for:
• Maximum rigidity: often through one-piece bodies and robust clamping screws
• High accuracy: positioning and repeat accuracy in the single-digit micron range is possible with premium systems
• Precise alignment: pre-set interfaces and adjustable sliding blocks that position the holder correctly on the turret
For the operator, this means less time adjusting tools and more time cutting. For production management, it simplifies standardisation and ensures that the same holder behaves the same way on different machines.
Driven (live) tool holders
Driven or live tool holders add milling, drilling and tapping capability to the lathe. Instead of only rotating the workpiece, you can also rotate tools, ideal for features like flats, cross holes, keyways and light milling in one setup.
Advanced live tool holders typically offer:
• Axial and radial configurations for flexible machining in different directions
• Compact, one-piece bodies for high stiffness and minimal runout
• Rigid spindle guidance and optimised bearings to handle higher speeds and cutting loads
• Effective sealing and coolant management to protect internal components and control heat
For shops with multi-tasking turning centers, well-chosen driven tools let you reduce the number of setups and move work from milling machines to the lathe when it makes sense from a capacity and cost-per-part perspective.
Quick-change and modular turning systems.
To keep machines cutting, tool change time matters. Modern turning tools includes quick-change and modular systems designed to speed up setup without sacrificing rigidity:
• Quick-clamp turret interfaces that allow the holder to be locked with a single screw while keeping full rigidity and positional accuracy
• Modular basic holders and cartridges for multi-tasking turning centers, where square tool holders, boring bar holders and cartridges can be swapped while keeping the same base on the machine
These systems reduce downtime during tool changes by up to several tens of percent, while also making it easier for operators to use pre-set tools measured offline.
External and internal turning tools
External (OD) turning:
External turning tools handle profiling, facing and grooving on the outside diameter of the workpiece. Typical features include:
• Hardened steel bodies with precision insert pockets and secure clamping mechanisms
• Configurations for roughing, finishing, profiling and parting
• ISO insert compatibility for easy sourcing and standardisation
Internal turning and boring:
Internal turning and boring tools are used for bores, internal profiles and grooves. Boring bar holders and damped bars are available to maintain stability even with long overhangs from the turret.
Key benefits:
• Improved surface finish and roundness inside the bore
• Reduced vibration and noise at higher cutting speeds
• Better tool life when boring deep or in unstable setups