Product: 5 PCS Diamond Drill Bits Set 2/5", 1/2", 3/5", 3/4", 1" - CBTONE Hollow Core Drill Bits Diamond Coated Grit Hole Saw for Glass, Tile, Fiberglass, Marble and Ceramic 10mm-25mm
Brand: CBTONE
Color: 5 PCS
Diamond Drill Bit Set, CBTONE 5 PCS Glass Hole Saw for Tiles Glass Ceramic Marble Bottles DIY Features: Material: Steel and nickel coated 5 hole saw diameter: 10mm(2/5"), 13mm(1/2"), 16mm(3/5"), 19mm(3/4"), 25mm(1") Application: Glass, marble, tiles, granite, ceramic tile bottles, blocks jars, fiberglass porcelain tile ceramic, slate marble, granite light stone or other Easy to use: High quality and good performance that removes a complete circle Ideal for: This diamond hole saws set is great for home use, hobby, craft, construction etc. Package Included:
 1 x 10mm Diamond Drill Bit
 1 x 13mm Diamond Drill Bit
 1 x 16mm Diamond Drill Bit
 1 x 19mm Diamond Drill Bit
 1 x 25mm Diamond Drill Bit HOW TO USE
 1.Start your hole diagonally, make a round trace and then hold drill straight.
 2.Always use lubrication (water), otherwise the diamond core drill will burn.
 3.Low drill pressure and increased use of water lubrication will extend drill bit life considerably.
 4.Not for use on Concrete or for depths beyond about 1/2"
Hole saw diameters: 10mm(2/5"), 13mm(1/2"), 16mm(3/5"), 19mm(3/4"), 25mm(1").
Diamond core drill bits made of Steel and nickel coated, durable and have a long service life. Diamond coated tip maximizes drilling performance and retains a sharp cutting edge after multiple applications.
This diamond coated core drill bit removes a complete circle from glass, marble, tiles, granite, ceramic tile bottles and no broken edges.
Diamond drill bits tools suitable for Drilling Glass,Tile Bottles, Blocks Jars, Fiberglass Porcelain Tile Ceramic, Slate Mable, Granite Light Stone, etc.
Warm notice: Please add lubricants or water frequently to avoid sparks while using these coated grit hole saw set, can also enhance the working life by doing this

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