Daimond drill bit is known as Diamond drill bits ,or diamond core drill bits, diamond hole saw or bonded diamond drill bits, glass drill or tile drill. But since they are used to drill glass, ceramic, porcelain, tile, ceramic tile, limestone, Slate, marble, granite, stone and glass fiber light, so they are more extensive applications. Features Material: High quality carbon steel, Uniform diamond coating. High precision. Especially impact resistance. Durable Color: Silver. Cutting Depth: 1/2'' (12.7 mm). Diameter: 6mm,8mm,10mm,12mm , 14mm, 16mm,18mm,20mm ,22mm,25mm , 26mm ,28mm ,30mm,40mm,50mm (15pcs). Side holes: Allow for easy slug removal after drilling?Nickel plating on these bits maximizes your tool's life with great resistance to corrosion Well suited for : Lithium Drill, AC Drill, Hammer Drill, Drill Press and so Suitable for for Drilling Glass,Tile Bottles, Blocks Jars, Fiberglass Porcelain Tile Ceramic, Slate Mable, Granite Light Stone, etc How to drill correctly: 1.Use pen to make a circle. 2.Start hole at an angle of 45°slowly. 3.Make a round trace and then hold drill straight. 4.Slow speed down for exit hole or drill from the other side from the other side to prevent breakthrough. Notes : Please not for use on concrete or for depths beyond about 1/2'' (12.7mm). Be sure to add water during the drilling process to keep the bit and materials from burning .Low drill pressure and increased use of water lubrication will extend drill bit life considerably . Package content: 15 x Diamond Drill Bits 1 x Carry Pouch 1 x Packing Box
N**R
Don't forget to add water to the drilling site to keep it cool, and it will last
Smaller diameter bits do not last, but what I really needed was the 1/2" one, and it worked admirably -- drilled several holes in tile with it. Don't forget to add water to the drilling site to keep it cool, and it will last.Considering the price, even if you use a single bit two or three times, it pays for itself, especially as compared to using an angle grinder to split tiles in half and cutting half-circles around a pipe.
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