Changzhou AMG Precision Tool Manufacturing CO., LTD
| Payment Terms | T/T/Credit Card |
| Name | Coolant Through Drill Bits |
| Number of flute | 2 |
| Type | Heavy duty step drill |
| Diameter | 4-32mm |
| Overall length | 50-400mm |
| Flute type | Spiral flute |
| Coolant method | Inner coolant |
| Application | Cast iron, steel, stainless steel, etc |
| Packaging Details | Plastic tube |
| Delivery Time | 5-12 working days |
| Supply Ability | 30000-100000pcs per month |
| Brand Name | AMG |
| Certification | ISO9001 |
| Place of Origin | CHINA |
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Product Specification
| Payment Terms | T/T/Credit Card | Name | Coolant Through Drill Bits |
| Number of flute | 2 | Type | Heavy duty step drill |
| Diameter | 4-32mm | Overall length | 50-400mm |
| Flute type | Spiral flute | Coolant method | Inner coolant |
| Application | Cast iron, steel, stainless steel, etc | Packaging Details | Plastic tube |
| Delivery Time | 5-12 working days | Supply Ability | 30000-100000pcs per month |
| Brand Name | AMG | Certification | ISO9001 |
| Place of Origin | CHINA | ||
| High Light | 50mm Coolant Through Drill Bits ，400mm Coolant Through Drill Bits ，Heavy Duty Drill Bit For Metal | ||
Carbide Step Drill Bit With Through Coolant Hole For Heavy Duty Machining
Introduction:
Features:
Integrated Step Design
Combines pilot hole and chamfering in single operation
Precision-ground steps maintain ±0.01mm diameter tolerance
Saves 50-70% cycle time vs. conventional methods
Advanced Through-Coolant System
2-4 coolant channels (diameter dependent)
Maintains 15-20Bar coolant pressure at cutting edge
Reduces heat buildup by 40% in deep holes
Premium Carbide Construction
Sub-micron grain structure (0.5μm) for maximum edge retention
Heavy-duty web design withstands high feed rates
Specialized Coating Options
AMG Hyper Coat (standard) for steel/stainless
Diamond coating available for composites/CFRP
Performance Advantages:
50% faster than conventional twist drills in stacked/stainless steel
No secondary deburring required (clean hole edges)
Consistent accuracy across all step diameters (±0.02mm)
Typical Applications:
Automotive: Drilling+chamfering engine blocks
Aerospace: Stack material drilling
Energy: Flange hole preparation
General Engineering: High-volume production
Detailed Pictures:
Our workshop:
Promotion policy:
Free sample: Free samples can be provided, if client is willing to pay the shipping cost.
Special offer for new customers: Enjoy USD50 discount when you spend USD500+ on your first order.
FAQ:
1. Which shipping method do you usually use?
We usually send goods by express like FedEx, UPS, DHL, TNT, EMS, ETC.
We also can send products to your shipping agent in China.
2. How about the delivery time?
For stock items, we can dispatch within 2 business days after receiving payment.
For the out-of-stock items, it depends on the quantity.Usually is around 5-7 business days.
3 Which payment methods do you accept?
We accept T/T, Credit card, etc.
4. Can you produce special carbide tools?
Yes, we can produce special carbide tools according to your drawings or samples.And we also can design the tools according to the drawing of your work pieces.
Company Details
Business Type:
Manufacturer
Year Established:
2017
Total Annual:
200-300
Employee Number:
30~50
Ecer Certification：
Verified Supplier
CHANGZHOU AMG PRECISION TOOL MANUFACTURING CO., LTD. is a leading manufacturer and solution provider specializing in high-performance carbide cutting tools for precision CNC machining applications. With a strong commitment to innovation and quality, we design and produce an extensive range of... CHANGZHOU AMG PRECISION TOOL MANUFACTURING CO., LTD. is a leading manufacturer and solution provider specializing in high-performance carbide cutting tools for precision CNC machining applications. With a strong commitment to innovation and quality, we design and produce an extensive range of...
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