HSS Cobalt Twist Drill Bits Metal Drilling Twist Drill Bits for Metal
10 set(s)Minimum order
customized support:
OEM, ODM
place of origin:
Shanghai, China
brand name:
NORTOOLS
model number:
H1030
drill type:
Twist Drill Bit
use:
Metal Drilling
Privacy Policy:
Samples are free within a certain price range
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$0.93-9.27
100 pieces (MOQ) 
$33.50-34.60
10 sets (MOQ) 
$5.13-5.65
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Quik Detail
| customized support | OEM, ODM |
|---|---|
| place of origin | Shanghai, China |
| brand name | NORTOOLS |
| model number | H1030 |
| drill type | Twist Drill Bit |
| use | Metal Drilling |
| working length (mm) | 13mm |
| finish | Zinc |
| Usage | Drilling Holes Drill Bit |
| Color | Bright / Black /others |
| Shank | Round shank |
| Feature | Perfect Cutting |
| Standard | DIN 338 |
| Flute | Type N |
| Material | 4241/4341/M2/M42/M35 |
| Processing Type | Fully ground |
| Packing | 5pcs / 10 pcs in one tube |
| Suitable for | Metal Drilling |
Product Detail
1. Material: HSS Cobalt Drill Bits
（1） Heavy-duty construction for drilling in tough, high-tensile and work-hardening materials under extreme operation conditions.
（2）Manufactured from premium 5% or 8% cobalt high speed steel increasing hot hardness and extending drill wear life.
（3）135°split-point is self-centering for reduced thrust and easier penetration
（4）Ideal for drilling hard material such as stainless steel.
（2）Manufactured from premium 5% or 8% cobalt high speed steel increasing hot hardness and extending drill wear life.
（3）135°split-point is self-centering for reduced thrust and easier penetration
（4）Ideal for drilling hard material such as stainless steel.
2. Drill points between normal 118°and 135° split point:
1. 118°point angles are used primarily in softer material such as mild steels and cast irons.
2. 135°split point should be used to cut harder steel materials and especially in deep holes over 4 times the drill diameter. With a 135°split point, cutting harder materials will produce thicker chips, minimizing work hardening of the cavity short.
The length of the lips on a 135°split point, measured from the axis to the cuter corners, is relativity short. This enables quicker penetration into the workpiece and reduces thrust and abrasion along the cutting edges.
3. When repointing a standard 118°point to 135°，make a lip correction to reduce the hook of the cutting face.
2. 135°split point should be used to cut harder steel materials and especially in deep holes over 4 times the drill diameter. With a 135°split point, cutting harder materials will produce thicker chips, minimizing work hardening of the cavity short.
The length of the lips on a 135°split point, measured from the axis to the cuter corners, is relativity short. This enables quicker penetration into the workpiece and reduces thrust and abrasion along the cutting edges.
3. When repointing a standard 118°point to 135°，make a lip correction to reduce the hook of the cutting face.
3. There are various Surface Finishing can be provided:
Welcome to Visit More Metal
Q1: Why choose us?
A: 1.we are Alibaba Assessed 2 years Gold supplier.
2.we are a factory manufacturing the tools, best production capability, best quality control, best service.
3.100% QC inspection before shipping, competitive price.
Q2: Can you help me design or modified the products as we request?
A: We have a R&D capability and professional &efficient team, so custom service and OEM/ODM are welcomed. we will try our best to make it out as long as you have a good idea.
Q3: What about the after-sales service ?
A: Our company is responsible for the supplied product within its usage life.
Q4: What about the samples?
A: We can supply samples.But we should charge the sample fee. And we will return after order confirmed.Customer should be responsible for the shipping fee when they require specific delivery method.
A: 1.we are Alibaba Assessed 2 years Gold supplier.
2.we are a factory manufacturing the tools, best production capability, best quality control, best service.
3.100% QC inspection before shipping, competitive price.
Q2: Can you help me design or modified the products as we request?
A: We have a R&D capability and professional &efficient team, so custom service and OEM/ODM are welcomed. we will try our best to make it out as long as you have a good idea.
Q3: What about the after-sales service ?
A: Our company is responsible for the supplied product within its usage life.
Q4: What about the samples?
A: We can supply samples.But we should charge the sample fee. And we will return after order confirmed.Customer should be responsible for the shipping fee when they require specific delivery method.
