Diamond Hole Saws Granite Drill Bit Coated Masonry Tools for Drilling Hard Granite Glass Stone 8mm/0.31inch 1PCS

Size:8mm/0.31inch;Shank Type:Straight Round Handle;Color:Orange;Number of Items:1; Diamond hole saw drill bit can be used with a standard electric drill Cut perfect circles with these tools,Suitable for Marble,Granite,Tile Ceramic,Stone,Engineering stone,Rebar Concrete etc;- Small incision resistance,feature drilling stably,fast speed,not breaking the border Opening neat,smooth, no broken edges,no tremor phenomenon,chip Easily; Diamond grit hole saw drill bit for bottles,are made of industrial grade carbon steel,sharp,fine workmanship and super wear-resistant,extended service life.Cutting drill bit are high quality and good performance that excellent for making clean and accurate hole;