Double Layer Diamond Drill Bit, Countertop Sink Hole Drilling Tool for Tile Quartz Marble Stone, Kitchen Bathroom Sink & Drain Drilling

Product name: Marble basin drill bit (blue – double layer)

Production process: Brazing process

Material: Diamond + high manganese steel 

Size: 40-60MM, 45-65MM, 50-70MM

Diameter of sand surface: 40MM, 45MM, 50MM

Depth of opening: 37MM

Sand grain:35/40#

Threaded hole diameter:5/8-11

Quantity: 1 Piece

Applicable models: Angle grinder

Application scope: Suitable for marble, quartz stone, ceramic tile, full ceramic tile, granite and other types of stone basin opening work

Features:

1. Selected high-quality diamond, no sand, no shedding, wear-resistant than ordinary hole opener, durable, long service life 

2. Brazing process, can be directly dry hit without adding water, adding water is more sharp and durable, can quickly open holes, do not avalanche porcelain, do not avalanche edges, the incision is flat

3. Upper and lower two layers of knife blade opening design, chamfering holes in one molding, down the water device and stone level face alignment

4. High manganese steel base body molded in one piece, the use of non-breakage, standard threaded interface, high concentricity, not easy to fall off, slippery, safe and firm

5. Professional chip removal holes, reduce the resistance of opening, fast drilling speed, improve work efficiency

Remarks:

1. Each product is independently packaged in a small plastic box

2. Open the hole first 45 ° oblique angle of light leaning, and then slowly erected to open the hole, while drilling, while slightly shaking, prohibit the drilling of tempered glass