Introduction to Drills
A drill is a tool used for making round holes or driving fasteners. It is fitted with a bit, either a drill or driver chuck. Hand-operated types are dramatically decreasing in popularity and cordless battery-powered ones proliferating due to increased efficiency and ease of use.
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Product Name: |
99pcs straight shank twist drill with iron box |
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Shank: |
Straight Shank |
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Application: |
For Metal Stainless Steel Aluminium PVC Iron Drilling |
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Packaging Details: |
In iron box |
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99PCs: |
1.5mm / 1.5mm / 2mm / 2.5mm / 3mm / 3.5mm / 4mm / 4.5mm / 5mm / 5.5mm / 6mm / 6.5mm / 7mm / 7.5mm / 8mm / 8.5mm / 9mm / 9.5mm / 10mm |
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Standard: |
DIN 338 HSS |
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Process: |
Roll Forged / Fully Ground / Milled Flute |
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Surface: |
Gray, Black, Bright, Tin-coated are available |
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Point Type: |
135 Degree Split Point (118 Degree Regular Point, Turbo Max Point, Pilot Point are Available) |
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Origin: |
P. R. China |
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HS Code: |
8207509000 |
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Single package size: |
26X6X23 cm |
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Single gross weight: |
1.550 kg |

Durability and Longevity
The hardness of carbide material ensures that these drills maintain their sharpness over time. This means fewer replacements and less downtime, which can save industries substantial time and money. The longevity of carbide drills is particularly beneficial in high-volume production environments where tools are subjected to continuous use.

Precision and Accuracy
Carbide drills offer exceptional precision and accuracy. Their sharp cutting edges allow for clean, accurate holes, which is essential in industries like aerospace and medical device manufacturing. Precision is critical where even minor deviations can lead to significant issues. The stability provided by carbide drills ensures that each hole is drilled to exact specifications, improving the quality of the final product.

Resistance to Heat and Wear
High-speed drilling generates a lot of heat, which can wear down standard drills quickly. Carbide drills, however, are highly resistant to heat and wear. This resistance makes them ideal for tasks that involve high temperatures or need prolonged drilling operations. The ability to withstand heat also means that carbide drills are less likely to deform or break during use, ensuring consistent performance and safety.
Blasting
In mining, blasting is the process of using controlled explosions to get through rock and excavate materials. Teams often use drills alongside explosives to focus excavation in one area.
Foundation work
Homes and commercial buildings require foundations for stability. The best way to lay a foundation is with a drill. These excavation tools create large, deep holes for inserting structures like piles, as digging deep into the ground allows teams to take advantage of stable bedrock below the surface. Once these pieces are in the ground, crews can build the rest of the structure and pour concrete into the space.
Fencing
Much like foundation, fencing needs a stable base to keep the structure in place. Drills can create the holes required to secure fence posts. Usually, these drills are used when the ground contains refusal, a type of hard rock that can't be dug up with an excavator.
Utilities
Utility companies need to place telephone poles to hold communication wires. Since these poles carry electricity and have to withstand all types of weather, stability is essential. The drills used for this job often have large drill bits to attain the best size for a telephone pole.
Water well
Home water wells use metal shafts that run deep into the ground to retrieve natural water. The need for an extremely deep hole makes a construction drill the perfect tool for starting a well.
Surface Coating Process for Drills
Titanium nitride process (TIN)
The titanium nitride (TIN) process has long been proven. The application is carried out according to the CVD process (chemical vapour deposition). High hardness, high adhesive strength and high toughness are the desired properties.
Titanium carbonitride layer (TiCN)
The titanium carbonitride layer (TiCN) has the following properties: very high hardness, very high adhesive strength and relatively high thermal conductivity.
Titanium Aluminum Nitride Coating (TiAIN)
The Titanium Aluminum Nitride Coating (TiAIN) is used for higher temperature loads and reduced cooling possibilities. It is very heat resistant.
Other Services
Samples
Free existing labels, you need to pay shipping cost.
OEM service
The material, color, style can customize.
Minimum Order Quantity
Usually 1 carton at least.
Quote time
We provide the quote within 1days when we get your inquiry.
Delivery time
About 25~30 days.
Payment Methods
T/T, Paypal.
Shipping method
By sea, or express.
After-sale service
Our quality warranty period is one year.
We're professional drills manufacturers and suppliers in China. Please feel free to wholesale high quality drills for sale here from our factory. For more discount information, contact us now.
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