美国采购需求：钨钢旋转锉、磨具、木工砂轮、砂轮、木工角磨机、气动锉刀

I'm reaching out to inquire about the availability and specifications of fine burs and files intended for use on jewellery bench tops. We're looking for a variety that caters to different finishing tasks, ensuring quality and precision in our work. Could you please provide details on the materials, grits, and any specific features of the burs and files you offer? Additionally, I'd appreciate your insights on pricing, minimum order quantities, and lead times for delivery. Looking forward to your prompt response!