| After-sales Service: | After-Sell Services |
|---|---|
| Logo Printing: | with Logo Printing |
| Size: | Middle |
| Customized: | Non-Customized |
| Type: | Cutting Tool |
| Material: | Metal |
| Samples: |
|---|
| Customization: |
|---|
Suppliers with verified business licenses
Audited Supplier Hole Drilling Tool - U Drill
1. Can be used on CNC lathe machine and engine machine.
2. Matched with CNC insert.
3. Spare part import from high quality steel ,the hardness of screw is grade12.9
4. Material 42CrMo,long tool life,better wear-resistantce,strength and rigidity,high working efficiency.
5. Stable cutting,smooth surface,high precision.
| Name: | U Drill |
| Brand: | KARVE |
| Material: | High Quality Spring Steel |
| Types: | 2/3/5XD Internal Cooling |
| Matching Insert: | WCMT/SPMT |
| Producer | CHINA |
| Machining: | P/K/M/S |
| Matching Machine: | CNC/Lathe |
| U Drill | Diameter Range(mm) | Matching Insert | Screw | Spanner |
| 2D/3D/4D/5D | 14-19.5 | WC03 | M2.5 | T8 |
| 20-23.5 | WC04 | M2.5 | T8 | |
| 24-24.5 | WC05 | M3 | T8 | |
| 25-30.5 | WC05 | M3 | T8 | |
| 31-40 | WC06 | M3.5 | T15 | |
| 40-41 | WC06 | M3.5 | T15 | |
| 42-60 | WC08 | M4 | T15 |
| U Drill | Diameter Range(mm) | Matching Insert | Screw | Spanner |
| 2D/3D/4D/5D | 13-13.5 | SP05 | M2.2*5 | T6 |
| 14-15.5 | SP05 | M2.2*5 | T6 | |
| 16-21.5 | SP06 | M2.2*5 | T6 | |
| 22-24.5 | SP07 | M2.5*7 | T8 | |
| 25-27.5 | SP07 | M2.5*7 | T8 | |
| 28-34 | SP09 | M3.5*10 | T15 | |
| 35-41 | SP11 | M4*11 | T15 | |
| 42-52 | SP14 | M5*12 | T20 | |
| Drill Depth=Drill Diameter * 2/3/5 | ||||
1. Flank Wear? Higher cutting resistance,Notch wear on flank, Poor roughness of surface, or deterioration of accuracy.
Soft grades,Excessive cutting speed,Small flank angle,Low feed.
Select a higher,wear-resistant grade,Reduce cutting speed,Increase flank angle,Increase feed.
2. Crater Wear? Uncontrolled chip,Poor surface quality,when finishing High speed processing carbon steel.
Soft grades,Excessive cutting speed, Excessive feed,The strength of chip breaker Insufficiet.
Change to a higher wear-resistant grade,Reduce cutting speed,Reduce feed, Select a higher strength chip breaker.
3. Chipping? Sudden fracture of cutting edge(rake face and flank),Instability insert life.
Toughness insufficient,Excessive feed rate,Strength of cutting edge insufficient,Instability of the tool.
Select a tougher grade, Decrease feed rate, Increase honing of cutting edge(chamfering to rounding),Increase the stability and setting angle.
4. Insert Fracture? Cutting resistance increased Poor surface roughness.
Toughness insufficient, Excessive feed rate, Strength of cutting edge insufficient,Instability of the tool.
Select a tougher grade, Decrease feed rate,Increase honing of cutting edge(chamfering to rounding),Increase the stability and setting angle.
5. Plastic Deformation?Variation of dimension Nose wear,cutting edge drape or passivating.when processing alloy steel Poor surface roughness.
Soft grade,Excessive cutting speed,Excessive cutting depth and feed rate,Overheat on cutting edge.
Select a higher red hardness cutting material,Decrease cutting speed,Decrease cutting depth and feed rate,Select a higher thermal conductivity cutting material(CVD+sufficient coolant).
6. Build-Up-Edge? Workpiece dissove with Cutting edge Poor surface roughness when finishing,Cutting resistance increased,Cutting soft materials.
Cutting speed too low, Cutting edge obtuse,Unsuitable tool material.
Increase cutting speed, Increase rake angle,Select small sticking force.
1. Q: Is free shipping possible?
A: We don't offer free shipping service,but we will give you some discount if you buy large quantity products.
And we have cooperation Express Companies, can offer you the best price of shipping cost.
2. Q:Are you manufacturer or distributor?
A: We are a manufacturer. And we also have our own trading company.
We have a professional R&D team, sale team,etc.
We can provide you the best quality goods and the perfect service.
3. Q: When can I get the price?
A: We usually quote within 24 hours after we get your inquiry.
If you are very urgent to get the price, please call us or tell us in your email so that we will regard your inquiry priority.
4. Q: What is the advantage about your company?
A: Our company has professional team and professional production line.
5. Q: Why should I choose your products?
A: Our products are high quality and low price.
6. Q: How can I get a sample to check your quality?
A: After price confirmation, you can require for samples to check our quality.
If you just need a blank sample to check the design and paper quality,
we will provide you sample for free, as long as you afford the express freight.
Suppliers with verified business licenses
Audited Supplier 
){kind=link}
){kind=link}