With the BT 800, Gühring is launching a high-performance replaceable head drilling system with bayonet lock, which is particularly impressive in medium to large diameters from Ø 14 mm due to its cost-effectiveness, flexibility and tool life.
When it comes to cost per part, every single parameter counts: Tool costs, set-up times and process reliability determine the efficiency of production. With the new BT 800 replaceable head drilling system, Gühring addresses precisely these points – and offers an economical and high-performance alternative to conventional solid carbide drills.
Modular system with solid carbide performance
The BT 800 combines two properties that are often mutually exclusive: the wear resistance of a solid carbide tool with the modular flexibility of a replaceable head system. This is made possible by the innovative bayonet interface – the centrepiece of the BT 800 – which stands for maximum clamping force, precision and repeat accuracy. Whether material change, component variation or process optimisation: Thanks to its modular design, the BT 800 can be quickly and easily adapted to different requirements – by changing the drill head directly in the machine without removing the carrier.
Cost efficiency for large diameters
The system fully utilises its economic advantages, especially for diameters from Ø 14 mm. Only the drill head is replaced when worn – this not only lowers tool costs, but also reduces warehousing and capital commitment.
Focus on productivity and flexibility
The option of combining different drill heads on one carrier shaft ensures a high degree of flexibility for changing requirements and materials. Heads can be changed quickly and safely – an advantage that reduces set-up times and increases machine availability. Another plus point: Gühring offers a closed tool cycle for the BT 800, including regrinding (up to twice) and a recycling service. This not only reduces costs, but also conserves resources.
Programme and technical features
This modular system will be launched in June 2025 with two holders for the Ø range 16.00 – 26.00 mm for drilling depths of 3xD and 5xD. Narrowly stepped Ø steps (in 0.1 mm increments) enable good guidance and increase the stability of the tool. The drill head with Persistum coating was specially developed for steel machining in the Ø range 16.00 – 26.00 mm. The range will be expanded in September 2025 with holder sizes 1.5xD, 8xD and 12xD as well as a Pilotier drill head with internal cooling for 4-fold cooling.
At a glance: The modular drilling system that can do more
- Wear-resistant like solid carbide
Solid carbide drill head for maximum tool life in demanding applications. - As flexible as a modular system
One carrier – many possibilities: Quickly convert to changing materials & geometries. - Quick tool change
Thanks to the bayonet interface directly in the machine – without removing the carrier. - Economical from Ø 14 mm
Significantly lower acquisition costs compared to monolithic solid carbide drills. - Sustainable in the Gühring cycle
Drill head can be reground up to 2× and is fully recyclable.
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