I require the following items: Hole saw cutter Diamond teeth 20mm, 14mm, 18mm, 20mm, 22mm, 25mm, 28mm, 32mm, 35mm, 47mm, 63mm 75mm, 82mm, 110mm, 114mm. Please let me know the minimum order quantity, cost, availability, delevery time, terms of payment. Also send me your product catalogue.