SJ-9 Series Taper 60° Carbide Burr, 1" Head, 1/4" Shank
Product Overview
The SJ-9 is a high-performance J Series taper burr designed with a precise 60-degree cone shape. It’s perfect for adding beveled edges and creating countersunk holes with ease.
Ideal for metalworkers who need reliable stock removal and superior surface finishes, this burr offers versatility with both a standard cut and a double cut option. Whether you’re working with cast iron, steel, or non-ferrous metals, the SJ-9 has you covered.
Its robust 1-inch head diameter and tapered design make it a smart tool for those demanding accuracy and smooth results, ensuring your projects look and feel professionally done every time.
Key Features
- 1-inch head diameter with a 3/4-inch length of cut for precise shaping
- 60-degree taper cone ideal for beveled edges and countersunk holes
- Available in both standard (single) and double cut options to suit different material and finish needs
- Standard cut delivers fast stock removal and great surface finish on cast iron and steel
- Double cut provides a smooth finish with combined right and left-hand flutes for better control
- Shank diameter of 1/4 inch and 2 inches in length for stable mounting in grinders
- Also available with a 3/8-inch shank for more robust tool holders
- Compatible with various metals including copper and brass alloys
- Designed for use in bench grinders and die grinders with excellent grip and control
Specifications
- Shape / Type: J Burr 60 Degree Angle Cone
- Cut Type: Standard Cut or Double Cut
- Head Diameter: 1 inch
- Length of Cut: 3/4 inch
- Shank Diameter: 1/4 inch (also available 3/8 inch)
- Overall Length: 2 inches
- Material Compatibility: Cast iron, steel, copper, brass alloys
- Brand / Manufacturer: Burrs4Less
- Made In: USA
- SKU / Part Number: 109-66164
Built for Long-Term Reliability and Consistent Performance
The SJ-9 isn’t just your run-of-the-mill burr; it’s crafted with durability in mind, helping you avoid frequent replacements and downtime. Its carbide construction means it stays sharper longer, requiring less hassle and maintenance. This consistent performance keeps your projects moving smoothly without surprise delays or uneven finishes. Over months or years, this translates to real savings—not just in tool costs but in overall work efficiency and reduced labor time.
Trusted Quality from an Industry Leader You Can Count On
Burrs4Less has earned a solid reputation for delivering high-quality cutting tools at competitive prices. Backed by years of experience and customer-focused innovation, products like the SJ-9 provide more than just equipment—they offer peace of mind. These burrs meet the demands of metalworking pros across the USA, with performance that doesn’t quit. Plus, the company's dedication to American manufacturing and environmental standards makes the SJ-9 a reliable, responsible choice for your shop.
Case Study: Real Business, Real Results
Located in Cincinnati, Ohio, Alloy Works upgraded their burr tools to improve beveling efficiency.
"Switching to the SJ-9 tapered burr instantly improved our edge finishing, reducing rework time significantly."
Cara Mitchell – Production Manager
Output increased by 35%, cutting down project turnaround times without sacrificing quality.
How Double Cut Technology Smooths Your Work Like a Pro
Double cut burrs combine right and left-hand spiral flutes, which might sound fancy, but simply put, it means the cutting edges slice the material from both directions. Imagine sanding a piece of wood back and forth instead of just one way—this makes for a smoother, more controlled finish. For you, that translates to smoother metal edges and less vibration while working, giving better control and tidier results even in tricky spots.
Installation and Maintenance Guide
Setting It Up
- Ensure your grinder is powered off before installing the burr.
- Check that the shank size matches your tool holder (1/4 inch or 3/8 inch options).
- Insert the shank fully and tighten the collet securely to prevent wobbling.
- Wear safety goggles and gloves before testing the tool.
- Start at lower speeds to confirm stability before increasing RPM.
Keeping It Going
- Clean the burr regularly to prevent material buildup using a wire brush or suitable solvent.
- Avoid excessive pressure when in use to extend tool life and maintain control.
- Inspect for wear or damage prior to every job and replace if necessary.
- Store in a dry place to avoid rust or corrosion.
- Use appropriate cutting speeds as recommended for different metals to optimize durability.
Frequently Asked Questions
Q: Which cut type should I choose for steel?
For steel, the standard (single) cut works best for rapid stock removal, while the double cut offers a finer finish.
Q: Can the SJ-9 be used on aluminum?
Yes, the burr can handle aluminum and other soft metals effectively.
Q: What type of grinder works with this burr?
It fits most bench grinders and die grinders with a 1/4 inch or 3/8 inch collet.
Q: How do I know if I need the 1/4 inch or 3/8 inch shank?
Check your particular grinder or tool holder specifications for shank diameter compatibility.
Q: Is the double cut burr harder to control?
No, the slight left-hand action aids control and reduces vibration during use.
Q: What metals can it cut besides steel and cast iron?
It works well on copper, brass, and other non-ferrous metals.
Q: Can I resharpen the burr?
Carbide burrs are typically replaced when dull rather than resharpened.
Q: Will the burr work for woodworking?
While designed for metal, it can be used on hardwoods but may wear faster.
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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 your next project slow down—grab the SJ-9 Tapered Burr today and experience smoother edges and faster finishes. Click "Add to Cart" now and step up your metalworking game with a tool that delivers every time.
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