Carbide Deep Hole Drill/Pearl Drill Bits/Holing Pins

Tungsten Carbide

Pearl Drill Bit/Holing Needle

It's made of Carbide Material.

Usually in small size , it's a kind of  Pearl dedicated holing needle.Also could use for other type jewerly.

It have high precision and good wear.

Heading/Threading/Secondary machine/Heat treatment/Plating/Packing/Shipping

Dia: 0.7mm, 0.8mm, 0.9mm, 1.0mm...3mm

Length: 50mm, 70mm, 100mm,.....345mm

Customized as your demands also ok.

More than 90HRA

1.Stable and reliable quality 
2.Good heat and corrosion resistance 
3.High strength and hardness

about 14.89g/cm3

Could customized as per your tolerence, size & proportion of ingredients.

Finishing  ( bright surface)

Differnet surface degree,size ,shape and carbdie grade  for your choose.

  TRS

 (N/mm2)

Universal grade ,widely used in machining tools for cast ion,nonferrous metals and their alloys and nonmetal materials,wear parts ,and tools foe machining other alloys.

Suitable for the semi-of hard cast iron,nonferrous metals and their alloys, and also suitable for the semi-finishing and of common cast iron and high manganese steel work-pieces and for othe tools

Mainly used for rock drilling,auger tips and well drilling tools and at the same time for drilling stone walls,cemented construction and installation work,and machining stone materials.

Mainly used for manufacturing strips and disc cutters and also for other tools

For manufacturing strips and also for other tools

Used for disc cutters and also for other tool

Suitable for the rough and of stainless steel, finishing of high strength steel sinishing and semi-sinishing of hardened steel ,and the machining of oron based heat resistant alloys and glass articles.