8pcs 10mm-50mm Diamond Coated marble Ceramic Tile Hole Saw Drill Bits set tool

-This is a brand new item. -Easy to use, high quality. good performance, long life. -Excellent for making clean and accurate hole on glass , tile and marble. -Works better with a electric drill (Excluding in this item). Specifications: Material: Metal Size: 10 / 14 / 18 / 20 / 26 / 32 / 45 / 50mm Package Includes: 1 x 8pcs Diamond tool drill bit hole saw set Note: When using the bit please add water to cool down the temperature to extend its service life. .