Coolant Single-hole Tungsten Carbide Rod
This is a tungsten carbide rod with a single coolant hole, designed for use in machining and tooling applications. It is pressed and sintered to maintain dimensional stability and is available in standard sizes or customised to drawing.…
Product Overview
This is a tungsten carbide rod with a single coolant hole, designed for use in machining and tooling applications. It is pressed and sintered to maintain dimensional stability and is available in standard sizes or customised to drawing. The coolant hole allows for efficient chip removal and tool cooling during high-speed cutting operations.
Key Benefits
- Coolant hole enables efficient chip evacuation and tool cooling during high-speed machining
- High hardness and wear resistance extend tool life in abrasive or high-load applications
- Dimensional stability from over-pressure sintering reduces need for post-processing
- Available in standard sizes with fast shipment; custom sizes made to drawing
- Samples provided for pre-testing before bulk order commitment
Technical Data
Values below come from the product data we publish. Anything not listed is confirmed against your drawing at quotation.
| Material | Cemented tungsten carbide (WC-Co) |
|---|---|
| Hole Type | Single coolant hole |
| Diameter Outer (D) | 4.3 mm to 25.3 mm |
| Hole Diameter (d) | 0.6 mm to 7.0 mm |
| Length (L) | 330 mm with tolerance +5.0 mm |
| Tolerance | Outer diameter: 0/+0.3 mm to 0/+0.5 mm; hole diameter: 0.15 mm to 0.4 mm |
| Finish | Unground or ground to drawing |
| Lead Time | Stock items 3-5 days after payment; customised items quoted per order |
| Grades Available | YG6 YG8 YG10 YG15 YL10.2 and equivalents |
Problems It Solves
- Standard tool bits wear quickly under high heat and abrasive load, reducing tool life
- Lack of coolant channels leads to built-up edge and poor chip removal in continuous cutting
- Inconsistent dimensions from sintering cause misalignment or poor fit in tool assemblies
- Long lead times for custom carbide rods delay production ramp-up
- No pre-test samples available means risk of incorrect material or geometry in bulk orders
Who It Is For
- Machinery manufacturers producing precision tooling with coolant channels
- Automotive OEMs and suppliers requiring wear-resistant components for engine parts
- Aerospace and defense contractors sourcing high-performance carbide parts
- Steel and metal processing plants needing durable tooling for high-temperature operations
- Industrial equipment makers requiring custom carbide rods for specialized tooling
Application Scenarios
- Tool bit for lathe machining of hard metals or high-temperature alloys
- Component in crankshaft and cylinder bearing systems for advanced automotive engines
- Electrode or structural part in aerospace components such as rocket nozzles or satellite fittings
- Conductor or additive in steel-making processes requiring high thermal and chemical stability
- Antiradiation shielding element in nuclear industry applications
Technical Features
- Single coolant hole drilled through the rod axis for internal fluid delivery
- Pressed on imported press for consistent green density and shape
- Sintered in over-pressure furnace to reduce porosity and stabilise dimensions
- Available in standard sizes with defined tolerance and length range
- Ground or unground options based on application requirements
Materials and Grades
- WC-Co cemented carbide with cobalt content selected for wear resistance and toughness
- Lower cobalt grades such as YG6 for maximum wear resistance in clean abrasive service
- Higher cobalt grades such as YG15 for improved toughness under impact or thermal cycling
Customisation Options
- Manufactured to customer drawings including non-standard hole size, length or diameter
- Grade selected based on application load, temperature and wear environment
- Coolant hole position and size adjusted to match tool design
- Samples produced for pre-testing before bulk release
- OEM and ODM services available for tooling and component integration
How This Part Is Made
Drawing review and grade selection
Powder blending and pressing on imported press
Over-pressure sintering to stabilise density and shape
Drilling of coolant hole to specification
Grinding to final dimensions if required
Dimensional and physical property inspection
Packing and shipping
Quality Control
- Physical properties, shape and tolerance are checked before shipping
- Every order is tested before bulk production is released
- Inspection photographs of the finished order are sent for confirmation before delivery
Use Guide
- Specify the coolant hole size, position, and length tolerance when sending a drawing
- Use higher cobalt grades like YG15 if the rod will see impact or thermal cycling
- Ensure the hole is aligned with the tool’s coolant delivery system in the machine
- Avoid sudden thermal shock when inserting a cold rod into a hot machining environment
- Keep a sample from the first batch for comparison during future quality checks
How It Compares With The Alternatives
| Alternative | Trade-off |
|---|---|
| Steel rod with coolant hole | Steel is cheaper but wears faster under high load or abrasive conditions; carbide maintains edge and shape longer |
| Solid carbide rod without hole | No coolant channel reduces tool life and chip removal efficiency; drilled hole improves performance in continuous cutting |
| Ceramic rod | Ceramic is harder but more brittle; carbide tolerates impact and thermal shock better in dynamic tooling applications |
Coolant Single-hole Tungsten Carbide Rod FAQ
Are you a trade company or a manufacturer?
A manufacturer. The company has produced tungsten carbide parts for over 15 years and takes on design and processing of carbide products with technical support.
Where is your factory located?
Zhuzhou City, Hunan Province, China, which is the country's tungsten carbide production base.
Can you produce the products according to my own drawing?
Yes. OEM and ODM services are available based on customer drawings, including non-standard hole sizes and dimensions.
Can I get a sample before placing a bulk order?
Yes. Samples are available for pre-testing. Send your drawing and service conditions for a quote.
How long does an order take?
Stock items are shipped 3-5 days after payment is received. Customised items are given a delivery time in the quotation.
How do I know the parts were checked before they shipped?
Physical properties, shape and tolerance are inspected before shipping, and detailed inspection photographs of the order are sent for confirmation before delivery.
Which grade should I choose?
It depends on the application. Lower cobalt grades such as YG6 offer better wear resistance in clean abrasive service; higher cobalt grades such as YG15 provide better toughness under impact or thermal cycling.
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Send the drawing or the dimensions plus what the part runs against. Samples are available for pre-testing before a bulk order.