From individual parts and small series production to the finishing and reworking of metal parts, Remscheid-based Kurt Metallverarbeitung manufactures various components for large-scale industry, such as spare parts for presses, cranes and excavators. Reliable tools that deliver the best machining results and maximum efficiency are essential. This is why the company focusses on modular drilling systems that impress with their flexibility and savings potential.

“Before we adopted the BT 800 interchangeable-head drilling system from Gühring, we were using a competitor’s modular drilling system, which allowed drill heads to be changed directly in the machine without a screw,” says director Samet Kurt

In this system, the drill head and carrier were connected using assembly keys with slotted engagement points. However, practical experience revealed shortcomings.

“The drill head often got stuck in the tapered interface,” says Kurt. “It then had to be removed with a lot of force, making it easy to slip and damage the sheath.”

The centrepiece of the BT 800 is the wear-resistant bayonet interface. Compared with Kurt Metallverarbeitung’s previous system, the mounting key now engages in the flute, enabling the drill head to be changed quickly, precisely and safely without damaging the cutting head.

Kurt tested the modular solution while drilling a cog made from C45 quenched and tempered steel (1.0503). The through-holes with a depth of 10 mm were milled on a Haas VF-1 vertical machining – ideal for use with the BT 800 interchangeable head drill. The result was convincing across the board.

“The quick-change system from Gühring is simply better,” says Kurt. “There are no problems when changing the drill heads – handling is simple and safe.”

More information www.geuhring.com