印度采购需求：硬质合金自攻钻头，自攻钻头，自攻钻头，自攻钻头，自攻钻头，自攻钻头 M6

I'm interested in exploring options for FLAT flow drill bits. Specifically, I'm looking for detailed specifications regarding the materials used, sizes available, and any unique features that differentiate your products from competitors. It's important for us to understand the performance metrics as well—any information on longevity, drilling efficiency, and compatibility with existing machinery would be incredibly helpful. Additionally, please provide your pricing structure, including bulk order discounts and any minimum order requirements. Lead times for delivery are also a key factor for us, as we plan our inventory accordingly. Any insights on warranty policies or after-sales support you offer would be greatly appreciated too, as we aim to build a long-term relationship with our suppliers. Looking forward to your comprehensive response!