20/25 Grit Diamond Drilling Bit

This diamond drilling tool is electroplated with extral big diamond particles. You can see the size and measure the diamond particle with naked eyes. The diamond grit is 20/25. The diameter is as large as 1mm.

Diamond drilling bit is Hard Enough a/d Can Be Used for Ceramic, Porcelain, Tile, Granite, Marble, Etc.

Wax Are Inserted to The Drill Bit for Cooling and Lubrication, So You Can Drill Holes without Adding Water. Also, Designed with Hole and Groove in the Side of Drill Bit for Removing Stone Chips.

Made of Nickel & Steel, Which is Durable and Can Be Used for Long Time. The Shanks are Triangle That Can Be Gripped Tightly, So It Won't Slip out Easily. Can Be Used with 10mm (3/8 in) Hand Drill, Bench Drill.

Product Parameters:

Product Name:  diamond drilling bit

Processing: electroplated diamond

Grit :  20/25

Diamond Size: 1mm

Application: drilling holes on porcerlain tiles, concret, stone, marble;