印度采购需求：金属钻头，高速钢中心钻头

I'm looking for a comprehensive portfolio of roll forged products in HSS M2 steel, specifically focusing on the jobber series with diameters ranging from 3 to 13 mm. Please include options in Jobber, Long, and Extra Long lengths. It would be great if you could provide detailed specifications, pricing, and any available certifications for these products. I'm particularly interested in understanding the features that distinguish your offerings in these series. Looking forward to your prompt response!