High Quality High Speed Steel Countersink Drill Bit Set Metal Drilling Hex Handle Black Oxide Finish High Efficiency

Product Description

📦 Product Description
Product Image 1
Product Image 2
Product Detail 1
Product Detail 2
Product Detail 3
Drill Bit Profile
Drill Bit Head View
🛠️ Applications
45 steel

45 steel

Stainless steel

Stainless steel
(Within 1mm)

square tube

Square tube

Chrome steel

Chrome steel

Iron

Iron

cast iron

Cast iron

copper

Copper

Aluminum alloy

Aluminum alloy

plastic

Plastic

Wood

Wood

Application 1
Application 2
📋 Specifications
Product Name High cobalt twist diamond
Size Range 12mm - 40mm
Material Stainless Steel, HSS (High Speed Steel)
Non-standards OEM available (based on drawings or samples)
D (mm) FL (mm) SD (mm) D (mm) FL (mm) SD (mm)
0.4 - 112347.6 - 897117
1.1 - 1.518408.1 - 8.575117
1.6 - 224498.6 - 981125
2.1 - 2.530579.1 - 9.581125
2.6 - 333619.6 - 1087133
3.6 - 4437510.1 - 10.587133
4.1 - 4.5478010.6 - 1194142
4.6 - 5528611.1 - 11.594142
5.1 - 5.5579311.6 - 1298155
5.6 - 6579312.1 - 12.5101151
🚚 Packing & Delivery
Packing Image

We provide various packaging methods including bags, paper boxes, plastic boxes, and customized solutions.

  • Multiple packing dimensions: 20kg or 25kg per carton.
  • Customized box and carton sizes available for large orders.
  • Normal Packing: 1000pcs / 500pcs / 250pcs per small box.
  • Special export packing available upon request.
🏢 Factory Profile
Factory 1
Factory 2
Factory 3
Factory 4

Professional Manufacturer: Supplying global trade with 15+ years of expertise in production and global markets.

Reliable Quality: Rigorous QC from materials to shipment including salt spray, hardness, and precision testing.

High Capacity: Over 1,000+ tons per month production capability.

Compliance: Products meet DIN, ISO, ANSI, BS, and JIS standards.

Flexibility: Professional OEM/ODM services available for diverse project requirements.

❓ Frequently Asked Questions
Are you a trading company or a manufacturer?
We are a specialized manufacturer with over 15 years of exporting experience in high-quality hardware and drill bits.
What is your Minimum Order Quantity (MOQ)?
MOQ varies by product. For items in stock, any quantity is acceptable. For new production, the standard MOQ is generally 500kg for common specifications.
What are your payment terms?
Our standard terms are 30% T/T in advance, with the balance due before shipment or against the B/L copy.
What is the expected delivery time?
In-stock items can be delivered within 7 days. For production orders, the typical lead time for a full container is 25 to 35 days.
Do you support OEM/ODM customization?
Yes, we provide flexible OEM and ODM services based on your specific drawings or physical samples.
Which international standards do your products follow?
Our products are manufactured in compliance with international standards including DIN, ISO, ANSI, BS, and JIS.

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