Sgs Pro 13325 SF-3 Ball Nose Tree Carbide Bur 3/8 in

Product Description

The SGS PRO 13325 is a single-cut tungsten carbide abrasive bur in the SF-3 ball nose tree profile, designed for aggressive material removal and contouring in metalworking applications. With a 3/8-inch cutting diameter and a 1/4-inch shank, it mounts directly into standard die grinders and rotary tools. The 3/4-inch length of cut provides adequate reach for cavity work, blending, and deburring. Rated to 37,500 RPM, this bur handles high-speed operation without sacrificing control. It ships uncoated, meaning no surface treatment interferes with initial bite on hard materials. Machinists, tool-and-die workers, and fabricators are the primary users of this type of bur.

This bur is suited for both bench-mounted and handheld rotary tool use in production and maintenance environments. The SF-3 ball nose tree geometry is commonly used for profiling concave surfaces, port work, weld blending, and internal radius finishing. Material applications include steel, hardened steel, stainless steel, cast iron, titanium, cermet, nickel, copper, and copper alloys. It is appropriate for use in fabrication shops, tool rooms, and field maintenance situations where precise material removal is required on hard metals.

Key Features

• SF-3 ball nose tree profile for contouring and cavity profiling
• Single-cut tooth style for smooth finish and efficient chip clearance
• Tungsten carbide head for durability on hard and exotic metals
• Rated to 37,500 RPM for high-speed die grinder use
• 1/4-inch shank fits standard collets on most rotary tools and die grinders
• Uncoated head for consistent cutting performance from first use

Compatibility

Designed for use with standard 1/4-inch collet die grinders and rotary tools. Compatible material applications include steel, hardened steel, stainless steel, cast iron, titanium, cermet, nickel, copper, and copper alloys.

Installation Notes

A licensed machinist or experienced fabricator should install and operate carbide burs. Ensure the die grinder or rotary tool is fully powered off and unplugged before inserting or removing the bur. Confirm the collet size matches the 1/4-inch shank before tightening, and do not exceed the 37,500 RPM maximum speed rating. Eye protection and appropriate PPE are required during operation.