Meet the SM-42 with Extended Shank Options—a versatile carbide burr designed to tackle a wide range of metwork and metal shaping jobs. Whether you’re grinding, deburring, or finishing, this tool has the muscle and precision to get it done.
If you work with metals like cast iron, steel, copper, or brass alloys, this burr is crafted just for you. It comes in two cut styles to suit your exact needs: Standard Cut for fast stock removal, or Double Cut for a finer, smoother finish.
Plus, if you’re planning a bigger project or need to stock up, there’s a sweet deal when you buy 100 or more—getting a top-notch burr at budget-friendly pricing. Ready to upgrade your toolkit?
Key Features
Available in Standard Cut and Double Cut options for versatile cutting needs.
Extended shank for better reach and control in tight or tricky spots.
1/8" head diameter with 7/16" length of cut gives precise and efficient material removal.
Shank diameter of 1/8" x 1-1/2" fits most standard rotary tools and grinders.
Standard Cut features a right-hand spiral flute ideal for rapid stock removal.
Double Cut combines right and left-hand flutes for super smooth finishes.
Compatible with a wide range of materials including cast iron, steel, copper, and brass alloys.
Slight left-hand cutting action on double cut enhances burr and grinder control.
Ideal for both professional metalworkers and hobbyists seeking quality results.
Bulk purchase discount available for orders of 100 or more units.
Specifications
Shape / Type: M Series Taper 10 to 31 Degree
Cut Type: Standard Cut or Double Cut
Head Diameter: 1/8 inch
Length of Cut: 7/16 inch
Shank Diameter: 1/8 inch x 1-1/2 inches
Material Compatibility: Cast iron, steel, copper, brass alloys
Brand / Manufacturer: Burrs4Less
Made In: USA
SKU / Part Number: 107-08092
Frequently Asked Questions
Q: What materials can I use the SM-42 burr on?
It’s compatible with cast iron, steel, copper, and brass alloys for a wide range of metalworking tasks.
Q: How do I choose between Standard Cut and Double Cut?
Choose Standard Cut for rapid stock removal or Double Cut for smoother finishes and better control.
Q: Is the 1/8" shank diameter compatible with most rotary tools?
Yes, it fits standard rotary tool chucks and grinders designed for 1/8" shanks.
Q: What is the advantage of the extended shank?
The extended shank gives better reach into tight spots and improves control during detailed work.
Q: Does the double cut burr have a different cutting direction?
Yes, it features a slight left-hand cutting action combined with right-hand flutes to reduce chatter and improve control.
Q: Can I use the burr on non-metal materials?
While primarily designed for metals, it can be cautiously used on some hard plastics, but performance varies.
Q: How should I clean and maintain the burr?
Use a wire brush regularly to remove debris, avoid clogging, and store it in a dry place to prevent corrosion.
Q: Are bulk discounts available?
Yes, buying 100 pieces or more lowers the price per burr to $2.69 each while supplies last.
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.
