Diamond Drill Bits, 10 Pcs Hole Saw Set with Adjustable Hole Saw Guide,Industrial Grade Carbon Steel, Coated With Nickle Plated Suitable for Ceramic, Glass, Tile, Porcelain,Wood

Multiple Sizes】—There are 10 sizes in the kit to meet various needs. Including 6mm, 8mm, 10mm, 12mm, 20mm, 25mm, 30mm, 35mm, 40mm, 50mm, These are made of high strength carbon steel makes these diamond drill bits durable.

Durable Material】–These diamond drill bits are made of industrial grade carbon steel, high quality, durable and have a long lifetime. The top of the drill is coated with nickel-plated, harder and durable, can provides excellent cutting strength.

Adjustable Hole Saw Guide】Adjustable hole saw drill guide jig fixture with suction base. Fit for all sizes of drills, up to 3-1/4″ Drill Diameters. Removable ball bearing, two modes ( Fixing 3 or 4 bearings) is your choice, just flip the panel.

Wide Application Range】–Drilling holes for Glass, Wood, Tile Bottles, Blocks Jars, Fiber glass Porcelain , Tile Ceramic, Granite Light Stone. When it working, please keep adding water, it can low drill pressure and greatly extend drill bit life.

Special design]】The large clearance holes on the drill bit facilitate the entry of cooling water and the escape of chips and other particles from the drilling, ensuring smooth drilling and making the drilling process easier.

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