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
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.
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 Carbide Burrs Direct?
Discover top reasons to pick our carbide burrs for your projects. Factory-direct quality at wholesale prices.
High Heat Resistance
Solid carbide construction maintains hardness even at high operating temperatures.
Maximum Durability
Solid piece construction ensures heat resistance and minimal breakage.
Affordable Pricing
Wholesale rates from USA manufacturer, high performance.
Industrial Heritage
Decades of experience supplying tools to the aerospace and automotive sectors.
