Diamond Cut Router Bit 1/2" x 1 1/2" x 4"
Product Overview
Working with tough, abrasive materials requires tools that stand up to the challenge. The 7PR 1/2"x1 1/2"x4" Extended Length Router burr is precisely built for those demanding jobs involving glass-reinforced printed circuit boards and phenolic-epoxy.
Whether you’re a professional fabricator or a precision shop operator, this router burr offers the edge you need. Its diamond cut and down cut action are combined to make routing highly abrasive substrates cleaner and more efficient.
With its 1/2" head diameter and extended 4" overall length, it’s perfect if you need a bit more reach without compromising control–an ideal go-to when tougher materials meet tight tolerances.
Key Features
- Diamond Cut for durability and precision on abrasive materials
- Down Cut action helps reduce chipping and tear-out
- Extended Length of 4" for deeper, more accurate cuts
- 1/2" Head Diameter ensures a steady balance of size and control
- Length of Cut measures 1 1/2"—great for detailed routing work
- Ideal for glass-reinforced printed circuit boards and phenolic-epoxy
- Standard or Double Cut options available for versatile applications
- Engineered to maintain cutting efficiency on highly abrasive surfaces
- Compatible with a wide range of router tools
- Manufactured with precision to optimize performance and longevity
Specifications
Shape / Type: Extended Length Router
Cut Type: Standard Cut or Double Cut
Head Diameter: 1/2"
Length of Cut: 1 1/2"
Overall Length (OAL): 4"
Material Compatibility: Glass-reinforced PCB, Phenolic-Epoxy, Abrasive materials
Brand / Manufacturer: Burrs4Less
Made In: USA
SKU / Part Number: 300-30072-SAL
Elevate Your Routing with Burrs4Less Extended Length Routers
When you’re working with demanding materials like glass-reinforced PCBs or phenolic-epoxy, consistency and reliability in your tools are non-negotiable. Burrs4Less has built a reputation across the U.S. for delivering products that minimize downtime and maximize uptime. By investing in extended length routers with diamond cuts, your shop benefits from cleaner cuts, less frequent burr changes, and ultimately, smoother workflows. That means fewer interruptions and more confident project completion day after day.
As a brand born and made in the USA, Burrs4Less stands out for its industry-leading precision manufacturing and commitment to quality. Their routers not only meet demanding specifications but also excel in real-world durability. Whether you’re a small fabrication shop or a large electronics manufacturer, using Burrs4Less tools means working smarter with tools built to last—helping reduce waste, improve environmental efficiency, and keep your operations compliant and competitive.
Case Study: Real Business, Real Results
Denver, CO – Upgraded to handle abrasive PCB materials more effectively
"Switching to the 7PR Extended Length Router drilled through our toughest projects with ease, reducing our routing time and tool wear dramatically."
Jason Reed – Production Manager
Boosted production speed by 35% while extending burr lifespan
Why Diamond Cut Makes All the Difference
Diamond cutting means the burr surface is studded with tiny, super-hard diamond particles that stay sharp much longer when grinding tough materials. Imagine trying to carve wood with a blunt knife—it’s slow and messy. Now picture that knife coated with diamond grit; it cuts cleaner and faster with less effort. That’s the idea here. This diamond cut router engages abrasive materials like phenolic-epoxy without losing its edge quickly, giving you smoother results and saving money on frequent replacements.
Installation and Maintenance Guide
Setting It Up
- Ensure your router collet matches the 1/2" shank diameter for secure fit.
- Clean the collet and burr shank before installation to prevent slippage.
- Mount the burr firmly, but avoid overtightening to prevent damage.
- Check rotation direction is set for down cut action to minimize material tear-out.
- Test the setup on scrap material before beginning your project.
Keeping It Going
- After use, clean burr with a brush to remove residue and debris.
- Store in a protective case to avoid dulling or damage when not in use.
- Inspect the diamond cutting surface regularly for signs of wear.
- Use proper speed settings on your router to extend tool life.
- If burr performance drops, consider professional sharpening or replacement.
Frequently Asked Questions
Q: What materials can I use this router burr on?
This burr is designed for glass-reinforced printed circuit boards, phenolic-epoxy, and other highly abrasive materials.
Q: What does down cut action mean?
Down cut means the burr spins in a way that pushes material down, reducing splintering and tear-out on surface materials.
Q: Is the cut type standard or double cut?
The router burr comes in both standard cut and double cut options for different finishing needs.
Q: What size shank does this router require?
This router has a 1/2" shank diameter, so your router must support that size for proper fit.
Q: How long is the length of cut?
The length of cut on this burr is 1 1/2", providing good depth for most routing applications.
Q: Can I use this router for woodworking?
While designed for abrasive materials, it may be less suitable for softwood or fine woodworking due to the diamond cut.
Q: How does the extended length affect tool handling?
The 4" overall length gives greater reach but requires steady control to avoid chatter.
Q: Are these burrs made in the USA?
Yes, all Burrs4Less router burrs, including this model, are proudly made in the USA.
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Q: How do I know when it’s time to Replace or Resharpen the burr?
Replace or Resharpen it when you notice decreased cutting efficiency or visible wear on the cutting edges.
Why Choose Burrs4less?
Discover top reasons to pick our carbide burrs for your projects. Factory-direct quality at wholesale prices.
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Premium Quality
Pro-grade tungsten carbide burrs for durable, precise work.
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Affordable Pricing
Wholesale rates from USA manufacturer, high performance.
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Fast & Free Shipping
24-hour shipping, free on $100+ orders.
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Expert Guidance
Team assists in picking ideal burr for materials.
Ready for Order
Don’t let tough materials slow your workflow. Grab the 7PR 1/2"x1 1/2"x4" Extended Length Router burr and upgrade to precision and durability you can count on. Order now and tackle your cutting challenges head-on!
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