Cup drill bit with 6mm to 50mm diamond tip for glass, stone, marble, and ceramics. Clean and smooth opening, without broken edges. The drilling is stable and the

1. The paint on the body of this drill bit prevents rust.
2. Clean and smooth opening, without broken edges, without shaking or chipping easily.
3. Low resistance to engraving, stable drilling, and won't break the edge.
4. Primarily used for drilling ceramic tiles, marble, granite, concrete, and other hard materials.
5. Ideal for drilling faucet mounting holes in stone countertops.

Technical Specifications:
Description:
These drill bits are cutting tools used to remove material to create circular holes. They come in many sizes and can create various holes in many different materials. They are attached to a drill that powers them to cut the workpiece by rotation.
Features:
The paint on the body of this drill bit prevents rust. Clean and smooth opening, without broken edges, shaking, or easily shattering. Low resistance to engraving, stable perforation, and won't break the edge. Primarily used for drilling ceramic tiles, marble, granite, concrete, and other hard materials. Ideal for drilling faucet mounting holes in stone countertops.
Technical Specifications:
Color: Gold
Size (optional):
6/8/10/14/16/18/20/22/25/30/35/50 mm
0.24/0.31/0.39/0.55/0.63/0.71/0.79/0.87/0.98/1.18/1.37/1.96 inches
Quantity: 1
Dimensions (mm): 6 8 10 14 16 18 20 22 25 30 35 50
Shaft Diameter (mm): 5-11
Weight (g): 11 21 40 35 47 57 63 70 72 96 122 227
Instructions: 1. To prolong its lifespan, it is best to use water for cooling and lubrication. 2. The drill can be used with a bench drill or a handheld electric drill. 3. When using a handheld electric drill, start slowly with