尼日利亚采购需求：钻头，高速钢钻头，金属

I'm looking to place an order for a set of high-quality cobalt stainless steel drilling bits that adhere to the DIN338 standard. Specifically, I'm interested in a range of bits with diameters from 1 to 18mm. Could you please confirm the availability of this product? I'm planning to order 5 sets if everything checks out. Additionally, if you could provide details about the pricing and lead time, that would be greatly appreciated. Thank you!