New drills for demanding machining applications

German cutting tool manufacturer Horn, represented in the UK and Ireland by Ringwood-based subsidiary Horn Cutting Tools Ltd, has introduced the new D1122 solid-carbide drilling system for highly productive machining of steels and cast materials. The straight, stable cutting edge reduces the formation of built-up edges, while corner chamfers contribute to wear protection, resulting in long tool life. A specially developed HiPIMS (high-power impulse magnetron sputtering) coating delivers excellent wear resistance.

Horn says that the carbide tools have an attractive price-to-performance ratio. The customised cutting edge geometry demonstrates an elevated level of process reliability and open, precision-ground flutes ensure reliable chip evacuation. The drills are offered with point angles of 135deg and 140deg. Two land margins result in stability and reduced friction.

The 135deg type is available in an 8x diameter version with four land margins for optimum drilling quality and high positioning accuracy. The 140deg drill is available in short and long versions (3xD and 5xD) in accordance with DIN 6537. The optimised point enables efficient chip formation and coolant distribution for both angles. All drill types are equipped with an internal coolant supply.