Published by on 11/08/2026 30pcs 0.7mm diamond coated hole saw drill Solid bits Jewelry Gems Glass Tile Ceramic Marble Granite The diamond coated hole saw suitable for use in drill hole on Jewelry, Gems, glass, marble, tile or granite. Product Specification: Head Diameter :0.7mm Total length :1-21/32" (42mm), can drill 3 mm depth Shank diameter: 0.093" (2.35mm) Drilling speed: Drill a Holes In Seconds Use with water as a lubricant Quick Tips 1.Please add water for coolant and drill slowly 2.Start drill at 45 Degree to surface and align to 90 Degree as hole forms 3.Never use drills while machine is in hammer action. 4.Holes Require No Futher Work As Cutting Is Clean We Can List Any Size (1mm - 230mm) & Amount Of This Product We will send out your order within 1-2 days after payment has been received and cleared. Welcome Visit My eBay Store: Zhou Zhou tools