Weiler 96242 Flap Disc 60 Grit 4.5 Inch Type 27

Product Description

The WEILER 96242 is a Type 27 flap disc from the Big Cat series, designed for aggressive material removal on angle grinders. The disc measures 4.5 inches in diameter with a 7/8-inch arbor hole and runs a zirconia alumina abrasive cloth at 60 grit for coarse-grade cutting action. A phenolic backing supports the flap arrangement, maintaining disc shape and abrasive contact under load. Rated to 12,000 RPM, it handles the demands of sustained grinding on steel and stainless steel. Fabricators, welders, and metal finishing technicians are the primary users.

This flap disc is suited for weld removal and surface preparation on steel and stainless steel workpieces. The Type 27 flat profile provides flush grinding across flat surfaces and inside corners, making it a practical choice for weld bead blending, mill scale removal, and prep work before coating or inspection. It fits standard 4.5-inch angle grinders with a 7/8-inch arbor. Both shop and field applications are supported given its compact form factor and single-unit packaging.

Key Features

• Zirconia alumina abrasive cloth delivers aggressive cut rate on ferrous metals
• 60 grit coarse grade suited for weld removal and heavy surface preparation
• Type 27 flat profile for flush grinding on flat and contoured surfaces
• Phenolic backing maintains disc integrity under continuous grinding loads
• 12,000 RPM maximum speed rating compatible with standard 4.5-inch angle grinders
• Big Cat series construction for consistent abrasive performance across the disc life

Compatibility

Designed for use on steel and stainless steel. Fits 4.5-inch angle grinders with a 7/8-inch arbor hole attachment. Suitable for weld removal and surface preparation applications.

Installation Notes

Flap discs are installed and serviced by metalworkers, fabricators, and maintenance technicians using angle grinders. Before mounting, confirm the grinder RPM rating meets or exceeds 12,000 RPM and that the disc is free of damage. Mount the disc securely on the arbor and ensure the guard is in place before powering on. Do not exceed the maximum rated speed, and always follow ANSI B7.1 safety standards for abrasive wheel use.