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High Hardness Tungsten Carbide Drill Bits With Long Working Lifespan

Categories Tungsten Carbide Drill Bits
Brand Name: OEM
Model Number: SP-T55401
Place of Origin: Jiangsu,Chiang(Mainland)
Price: Negotiable
Supply Ability: 100000PCS
Delivery Time: 5-15days according to quantity
Packaging Details: 1PC in Single Plastic Tube
Material: Carbide
Diameter: 1-20mm
Overall Length: 50-150
Flute: 2/4
Application: Cutting Tools
Coating: AlTiN/NACO/TiAlN/TiSiN
OEM: Accept
  • Product Details
  • Company Profile

High Hardness Tungsten Carbide Drill Bits With Long Working Lifespan

Tungsten carbide twist drill bit carbide drill through hole coolant

MaterialTungsten carbide
TRS>4000 N/mm2
HRA91.8-92.4, HRC:45/55/60/65
Grain size0.2-0.6μm
Helix angle30°-45 °
Diameter of cutting edge0.2-0.9mm; 1-20mm
SizeDiameter 1.0mm-20mm standard and non-standard.
Cutting FormSquare,Ball nose, Corner Radius, Taper Flute, etc.
Type of flute2/3/4/6

Main Features

1) Simple structure in linear type ,easy in installation and maintation.

2) Extended cutting capability and longer tool life are realized.

3) The self-determined heart function and strictly controlled manufacturing precision of the bit can ensure the drilling quality of the hole, after drilling, there is no need for further finishing.


  • Suitable for drilling cast iron of automobile industry and other industries.
  • Wave formed cutting lips provides lowered machining torque.

  • Four margin design, improves hole wall quality and accuracy.
  • Increased Drills point strength through optimized chisel edge.

1. Are you trading company or manufacturer? Do you have a factory?

We are trading company and manufacturer. Our factory is located in Changzhou City, Jiangsu Province. we have more than 15 years experience in that field,It is very close to Shanghai. Welcome to visit our factory!

2. What machine do you use?

We have ANCA for 5-Axis automatic CNC grinding machines from Australia,Zoller cutter testing machine and VMS projector from Germany,Mitutoyo measurement machine from Japan,MR tools testing machine from America etc..

3. How about the delivery time?

According to the sizes and quantity, delivery time is different. Usually 5~10 days. We can tell you exact inventory state if you need.

4. Can you produce Special carbide Tools ?

Yes We can. From 2013 year. Our factory main market change from standard end mills to special tools. Special tools

according your drawing and sample

5. How to control the quality?

We have our own QC department in our factory to make sure that all,our product are in very good quality before ship out to customers,before delivery clients could send one QC or point the third party to check the quality

6. what is your terms of payment?

Payment<=1000USD,100% in advance,payment>=1000USD,30% T/T in advance,balance before shipment,L/C is welcome

7. Do you make OEM?

Yes, we do. We have laser machine, can laser your logo and sizes on the body of milling cutter, also can print labels.

8. How about your stock?

We have large quantity products in stock,regular types and sizes and sizes are all in stock

We sincerely look forward to cooperate with you!

Quality High Hardness Tungsten Carbide Drill Bits With Long Working Lifespan for sale
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