Norton 69957308004 SA-3 Double Cut Carbide Burr 3/8 in

Product Description

The NORTON 69957308004 is a double cut tungsten carbide rotary burr in a cylindrical, no-end-cut (SA-3) configuration. Rated to 25,000 RPM, it is designed for aggressive material removal, deburring, shaping, and surface blending on a wide range of ferrous and non-ferrous metals. The double cut tooth pattern produces faster stock removal than single cut while leaving a reasonably smooth finish. The 3/8 inch cutting diameter and 1/4 inch shank make it compatible with standard die grinders and rotary tools used daily in fabrication, maintenance, and tool-and-die work.

This burr is suited for use in metal fabrication shops, maintenance and repair operations, and tooling environments where precise material removal is required. Its uncoated tungsten carbide head handles a broad range of materials including tool steel, 300 and 400 series stainless steel, cast iron, copper, hard and soft carbon steel, and titanium. It is typically installed by machinists, pipefitters, welders, and metal fabricators working in industrial or trade settings.

Key Features

• Double cut tooth style for fast stock removal and smooth finish on metal workpieces
• Cylindrical no-end-cut (SA-3) head geometry for side cutting and slot work
• Tungsten carbide construction for hardness and wear resistance across demanding materials
• Rated to 25,000 RPM for use with standard pneumatic and electric die grinders
• 1/4 inch shank fits common collet sizes on rotary tools and die grinders
• Uncoated head suitable for direct use on stainless steel, cast iron, copper, and titanium

Compatibility

Designed as an SA-3 industry-specification cylindrical burr for use with 1/4 inch collet die grinders and rotary tools. Suitable for material removal on tool steel, 300 series stainless, 400 series stainless, cast iron, copper, hard carbon steel, soft carbon steel, and titanium.

Installation Notes

Install the shank fully into the collet and tighten securely before operation. Verify that the die grinder or rotary tool is rated to handle the burr speed — do not exceed 25,000 RPM. Disconnect the air supply or unplug the tool before changing burrs. Eye protection and appropriate PPE are required when operating rotary burrs on metal.