| Prod Model: |
LFJS |
| Markets: |
North America,South America,Eastern Europe,Southeast Asia,Africa,Oceania,Mid East,Eastern Asia,Western Europe |
| Classification: |
Impact Drill |
| Applications: |
Building and Industrial |
| Impact Drill Head: |
Impact Drill |
| Drill Shape: |
Round |
| Condition: |
New |
| Specification: |
2.5mm to 13mm |
| Various Size Can Be Your Choose: |
Double End HSS Twist Drill Bits |
| HRC: |
60-67 |
| Chemical Composition: |
C, W, Mo, Cr, V |
| Type: |
Impact Drill |
Product Description
HSS Dual-end twist drill
Fabrication process: rolling (twist forging)/milling(grinding)/polishing
Application:drlling on all kinds of work material:cast iron, #45 steel, free-cutting steel,general steel,alloy steel, copper alloy,aluminum alloy,graphite, wood , glass fiber,cement...etc
Coating:titanium coating /black coating/white coating.
The advantage of our company:
Professional equipment for twist drill production
Fully scale detection equipment
standard warehouse
The advantage of our producuts:
Advantages: cutting and milling portions integrally formed, superior surface finish, stable dimension, effectively reduce the friction coefficient, improve process efficiency.
Cutting edge: take chisel edge truing and dressing, stable cutting, good drill centering with high precision; big spiral angle and apex angle design to reduce axial resistance, reduce cutting force, high process efficienc.
Flute: big polished flute design for smooth chip evacuation.
Shank: take friction welding technology, shank securely weld.
Grade:M2(6542),4241,4341,M35
HSS GRADE | HRC | CHEMICAL COMPOSITION (%) | International | DIN | ASTM | JIS |
|
| C | W | Mo | Cr | V |
|
|
|
|
| W4Mo2Cr4V(4241) | 60-62 | 0.9-1.0 | 1.5-2.5 | 0.5-1.2 | 3.8-6.0 | 0.5-1.0 | T-4241 | / | / | / |
| W4Mo3Cr4V(4341) | 62-65 | 0.88-0.98 | 3.5-4.5 | 2.5-3.5 | 3.8-4.4 | 1.3-1.7 | 4341 | W4 | / | / |
| W6Mo5Cr4V2(M2) | 63-66 | 0.8-0.9 | 5.5-6.75 | 4.5-5.5 | 3.8-4.4 | 1.75-2.2 | 6542 | M2 | M2 | SKH51 |
| W6Mo5Cr4V2Co5(M35) | 64-67 | 0.9-0.95 | 5.5-6.5 | 4.5-5.5 | 3.8-4.4 | 1.75-2.2 | Co:4.50-5.50 | M35 | M35 | SKH55 |
Size parameter table
Diameter |
Full length |
Blade length |
Diameter |
Full length |
Blade length |
Full length |
Blade length |
| 2 | 38 | 7.5 | 4.7 | 58 | 15.5 | 74 | 23.6 |
| 2.1 | 38 | 7.5 | 4.8 | 62 | 17 | 79 | 25 |
| 2.2 | 38 | 7.5 | 4.9 | 62 | 17 | 79 | 25 |
| 2.3 | 38 | 7.5 | 5 | 62 | 17 | 79 | 25 |
| 2.4 | 38 | 7.5 | 5.1 | 62 | 17 | 79 | 25 |
| 2.5 | 43 | 9.5 | 5.2 | 62 | 17 | 79 | 25 |
| 2.6 | 43 | 9.5 | 5.3 | 62 | 17 | 79 | 25 |
| 2.7 | 46 | 10.6 | 5.4 | 66 | 19 | 79 | 25 |
| 2.8 | 46 | 10.6 | 5.5 | 66 | 19 | 79 | 25 |
| 2.9 | 46 | 10.6 | 5.6 | 66 | 19 | 79 | 25 |
| 3 | 46 | 10.6 | 5.7 | 66 | 19 | 79 | 25 |
| 3.1 | 49 | 11.2 | 5.8 | 66 | 19 | 84 | 25 |
| 3.2 | 49 | 11.2 | 5.9 | 66 | 19 | 84 | 25 |
| 3.25 | 49 | 11.2 | 6 | 66 | 19 | 84 | 25 |
| 3.3 | 49 | 11.2 | 6.1 | 7 | 21.2 | 84 | 25 |
| 3.4 | 52 | 12.5 | 6.2 | 7 | 21.2 | 84 | 25 |
| 3.5 | 52 | 12.5 | 6.3 | 7 | 21.2 | 84 | 25 |
| 3.6 | 52 | 12.5 | 6.4 | 7 | 21.2 | 84 | 25 |
| 3.7 | 52 | 12.5 | 6.5 | 7 | 21.2 | 84 | 25 |
| 3.8 | 55 | 14 | 6.6 | 7 | 21.2 | 84 | 25 |
| 3.9 | 55 | 14 | 6.7 | 7 | 21.2 | 84 | 25 |
| 4 | 55 | 14 | 6.8 | 74 | 23.6 | 84 | 25 |
| 4.1 | 55 | 14 | 6.9 | 74 | 23.6 | 89 | 25 |
| 4.2 | 55 | 14 | 7 | 74 | 23.6 | 89 | 25 |
| 4.3 | 58 | 15.5 | 7.1 | 74 | 23.6 | 89 | 25 |
| 4.4 | 58 | 15.5 | 7.2 | 74 | 23.6 | 89 | 25 |
| 4.5 | 58 | 15.5 | 7.3 | 74 | 23.6 |
|
|
| 4.6 | 58 | 15.5 | 7.4 | 74 | 23.6 |
|
|
Kindly Remind: all kinds size depends on your needs.
Changsha Langfeng Metallic Material Co., Ltd, founded in 2009 Changsha Long-ping High-Tech Park, is an patent-owning firm specializing in metal carbide powders' research, production and sale.
With 100 sets of various manufacturing equipments covering the process of raw material mixing, carbonization, sintering, grinding, sieving, mixing and packing, the group distinguishes itself also by 182 workers and 2 academician in engineering material from Chinese Academy of Science. Furthermore, we established technical support relationship with Powder Metallurgy Research Institute of Central Sounth University and Changsha Research Institute of Mining And Metallurgy.
Our products: Metal carbide powder, multiple carbide powder, compound powder, Ti(C, N) Based cermet, Tungsten carbide tile cutter, glass cutter wheel, planetary ball mill, industrial microwave furnace.
Our goal:
In the next five years, we face the task of expanding investment of US$80 million. In 2023, a new R&D base for new materials will be established, and sales revenue goal is US$10 billion.
Company culture:
Vision: Driving force in technical progress
A world leader in the field of new materials
Mission: Create value for the whole world
Operation idea: Good faith, high quality, innovation, win-win
Serve concept: Warm, excellent, quick and considerate services.
Spirit: Never give up, Never stop
Team work, make dream come true;
Value: Quality win honor, service win reputation;
Responsibility: Create value for customers, set up developing stage for staff.
We guaranteed products at a competitive price and high quality. At present, our products have a very good sale in domestic and overseas market. We wish to cooperate with you to create a bright future and mutual benefit. Much appreciation for your prompt attention in advance, we are eager to look forward to hearing from you soon.
