Osborn 0007570500 Cup Brush 9/16 in Steel Straight

Product Description

The OSBORN 0007570500 is a steel cup brush designed for surface preparation, deburring, and cleaning operations on metal workpieces. With a 9/16 inch brush diameter and a 1/8 inch shank for chuck or collet mounting, it runs at up to 25,000 RPM, making it well suited for use with die grinders, rotary tools, and flex-shaft machines. The straight wire fill configuration delivers consistent contact across the work surface. Wire diameter is 0.005 inches, providing a fine, flexible action appropriate for light scale removal and weld cleanup without aggressive material removal.

This cup brush fits standard die grinder and rotary tool applications across metalworking, HVAC fabrication, plumbing, and electrical trades where small-diameter brushes are needed for confined areas or tubing ends. Its compact 9/16 inch head is practical for internal bore cleaning, pipe end prep, and connector surface finishing. The 1/8 inch shank is a common size for bench-top rotary tools and inline die grinders found in most trade shops.

Key Features

• 9/16 inch brush diameter suits confined spaces and small-bore work
• Steel fill wire at 0.005 inches delivers light, flexible cleaning action
• Straight cup profile for consistent surface contact
• 1/8 inch shank fits standard die grinders and rotary tool chucks
• Rated to 25,000 RPM for high-speed tool compatibility

Compatibility

Designed as a standard replacement or stock cup brush for die grinders and rotary tools accepting a 1/8 inch shank arbor.

Installation Notes

Installation is performed by trade professionals using standard die grinders, rotary tools, or flex-shaft machines with a compatible 1/8 inch collet or chuck. Always confirm the tool spindle speed does not exceed the 25,000 RPM maximum rating of the brush before operation. Secure the shank fully in the collet and verify the locking mechanism is tight before running the tool. Wear appropriate eye and face protection when operating wire brushes at speed.