印度采购需求：取芯钻头、取芯钻头、金刚石取芯钻头、湿式取芯钻头、干式取芯钻头、取芯钻头

I'm looking for a ring saw that's brushless, with a cutting depth of approximately 300 mm. It would be great if you could provide me with details regarding the specifications, available models, and any relevant features that differentiate your products. Additionally, I'm interested to know about the pricing, lead time for delivery, and any warranty or after-sales support you offer. If you have any recommendations or insights on the best options for my needs, that would be appreciated. I'm keen to understand how your products perform in various applications and if there are any additional accessories or options that could enhance their functionality. Looking forward to your prompt response!