Precision Twist Drill 7466216 Carbide Abrasive Bur SA-50DC

Product Description

The PRECISION TWIST DRILL 7466216 is a double-cut carbide abrasive bur with a cylinder and flat-end head profile, conforming to industry specification SA-50DC. It is designed for aggressive material removal and surface finishing on metal workpieces in fabrication, maintenance, and tool-and-die applications. The 1/2-inch cutting diameter and 1-inch length of cut allow efficient stock removal in a single pass, while the double-cut tooth pattern reduces chatter and clears chips faster than single-cut geometry. The 1/4-inch shank fits standard die grinders and rotary tools. Machinists, pipefitters, and fabricators use this bur for deburring, blending welds, porting, and shaping hard materials.

This bur is suited for use on steel, stainless steel, cast iron, non-ferrous metals, high-temperature alloys, and other hard materials. It performs in both handheld die grinder setups and bench-mounted rotary applications. Typical use cases include weld prep, port matching, cavity deburring, and contour blending in manufacturing and heavy fabrication environments. The uncoated carbide head maintains cutting edge integrity across a wide range of ferrous and non-ferrous workpiece materials without the risk of coating delamination at elevated surface speeds.

Key Features

• Double-cut tooth style for faster stock removal and reduced chatter
• Solid carbide head rated for steel, stainless steel, cast iron, non-ferrous metals, high-temperature alloys, and hard materials
• 1/2-inch cutting diameter with 1-inch length of cut for substantial contact area
• 1/4-inch shank diameter compatible with standard die grinder collets
• Rated to 25,000 RPM for use with high-speed rotary tools
• Conforms to SA-50DC industry specification for consistent head geometry

Compatibility

Designed as an OEM-style replacement for 1/4-inch shank die grinders and rotary tools requiring a double-cut carbide cylinder bur meeting the SA-50DC industry specification.

Installation Notes

Installation is performed by machinists, fabricators, or maintenance technicians using a standard die grinder with a 1/4-inch collet. Ensure the die grinder is fully powered down and depressurized before inserting or removing the bur. Seat the shank fully into the collet and tighten to the tool manufacturer's specification before operation. Always wear appropriate eye protection and ensure the workpiece is secured before engaging the tool.