Cgw 39947 Aluminum Oxide Flap Wheel 40 Grit 10 Per Box

Product Description

The CGW 39947 is an aluminum oxide flap wheel designed for grinding, blending, and finishing on metal surfaces. Measuring 3 inches in diameter by 1 inch wide with a 1/4-inch shank, this wheel mounts directly to standard die grinders and handheld rotary tools. The 40-grit abrasive provides aggressive stock removal, making it well suited for deburring, weld dressing, and surface preparation on ferrous and non-ferrous metals. Firm backing maintains consistent contact pressure across the work surface. Each box contains 10 wheels.

This flap wheel is used in fabrication shops, maintenance facilities, and field metalwork where controlled grinding on curved or contoured surfaces is required. The 1/4-inch shank fits standard collet sizes on die grinders and drill presses. At 40 grit, it handles initial material removal before transitioning to finer abrasives. Typical users include welders, pipefitters, machinists, and metal fabricators working on steel, aluminum, and similar alloys.

Key Features

• 40-grit aluminum oxide abrasive for aggressive stock removal and weld dressing
• 3-inch diameter by 1-inch wide contact face suits contoured and cylindrical workpieces
• 1/4-inch shank fits standard die grinder and rotary tool collets
• Firm backing delivers consistent abrasive contact across the wheel face
• 10 wheels per box for job-site and shop stocking efficiency

Compatibility

Designed for use with standard die grinders and handheld rotary tools accepting a 1/4-inch shank abrasive wheel.

Installation Notes

Installation and operation of abrasive flap wheels should follow ANSI B7.1 safety standards and the tool manufacturer's maximum RPM rating — never exceed the wheel's rated speed. Inspect each wheel for damage before mounting and ensure the shank is fully seated in the collet before tightening. Wear appropriate PPE including eye protection and gloves during use. Disconnect or power down the tool before changing wheels.

Technical Specifications

• Abrasive Material: Aluminum Oxide
• Grit: 40
• Diameter: 3 inches
• Width: 1 inch
• Shank Diameter: 1/4 inch
• Backing: Firm
• Quantity Per Box: 10
• Weight: 0.277 pounds
• UPC: 65533239947

Standard Information

• Brand: CGW
• Manufacturer Part Number: 39947