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Carbide drill for turquoise
Carbide drill for turquoise

Carbide drill for turquoise

Carbide drill for turquoise,
shipping in 3 workdays for standard size,in 7-12 workdays for customized size.
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Description
Carbide drill for Turquoise
With standard size in stock, also produce as customer's needs.

Materials:     Solid Carbide(Tungsten Steel)
Helix Angle:     30°， 35° or as customer's choice
Point Angle:     120° , 135°，140° or as customer's choice
Coating :    uncoated or as customers' needs
Shank Diameter:    3mm and 3.175mm
carbide drill for turquoise
Dimensions for carbide drill for turquoise drilling:(Also produce as customer's special request)
Shank diameter           Cutting diameter       Cutting length         Total length             Point angle      
3.175  0.1 3 or 6 38.1 120°/135°
3.175  0.2 3 or 6 38.1 120°/135°
3.175 0.3 4 or 8 38.1 120°/135°
3.175 0.4 4 or 8 38.1 120°/135°
3.175 0.5 5 or 8 38.1 120°/135°
3.175 0.6 6 or 8 38.1 120°/135°
3.175 0.7 6 or 10 38.1 120°/135°
3.175 0.8 6 or 10 38.1 120°/135°
3.175 0.9 8 or 12 38.1 120°/135°
3.175 1.0 8 or 12 38.1 120°/135°
3.175 1.1 10 or 15 45 120°/135°
3.175 1.2 10 or 15 45 120°/135°
3.175 1.3 12 or 18 45 120°/135°
3.175 1.4 12 or 18 45 120°/135°
3.175 1.5 12 or 18 45 120°/135°
3.175 1.6 12 or 18 45 120°/135°
3.175 1.7 12 or 18 45 120°/135°
3.175 1.8 12 or 18 45 120°/135°
3.175 1.9 12 or 18 45 120°/135°
3.175 2.0 12 or 18 45 120°/135°
3.175 2.1 12 or 18 45 120°/135°
3.175 2.2 12 or 18 45 120°/135°
3.175 2.3 12 or 18 45 120°/135°

The most important considerations for turquoise drilling
1. Why do we need to add water to the whole process?
Many people understand that adding water is to wash the tunnel, and the transverse rush does not enter the tunnel. Why do we need to add water? In fact, whether it is vertical or horizontal, the purpose of adding water is not to wash the holes, but to cool down.
I used to test violently without water punching, a 1.5-bead, half-finished, the beads were already hot, and the drill head was already black.
2. Why do the drilling bit go in and out?
Punch the needle a little, exit the tunnel, then hit a little, then exit the tunnel, this is also to cool down, otherwise it is easy to break the needle continuously. When you encounter a turquoise with a high degree of porcelain, you only have to go deeper at a time, and you must be slower and backward. The higher the porcelain, the slower the speed.
3. Why does turquoise have to drilling holes, but not one side?
Turquoise drilling should be punched on both sides, while playing a little, do not open, rotate to the other side and fight again. You can't hit it all the way from the other side. In that case, the hole on the other side will collapse and the gap will break.


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