• Centring tip for precise drilling start and good guidance in the drilled hole• 2 cutter tip made of high durable tungsten carbide for a long lifetime and wear resistance
• 4 flute dura design – reinforced core section for better wear resistance and stability when drilling in concrete
• Contains 5.5x100x160mm, 7x100x160mm, 8x100x160mm, 10x100x160mm