Cratex 40142 Surface Grinding Wheel 3in 120 Grit Type 1

Product Description

The CRATEX 40142 is a Type 1 surface grinding wheel designed for precision surface grinding and finishing applications. It measures 3 inches in diameter and 1/8 inch thick, with a 1/4-inch arbor hole. The wheel is bonded with aluminum oxide abrasive at a 120-grit, fine-grade specification, making it well-suited for controlled material removal and surface refinement on ferrous and non-ferrous workpieces. Rated to a maximum of 12,095 RPM, it is intended for use on bench grinders, die grinders, and rotary tools capable of accepting a 1/4-inch arbor. The soft hardness rating allows the wheel to release abrasive grains consistently, reducing glazing during use.

This wheel is commonly used in machine shops, maintenance facilities, and fabrication environments where a small-diameter, fine-grit wheel is needed for deburring, light stock removal, or surface blending. Its compact 3-inch diameter makes it appropriate for work on tight geometries, edges, and confined surfaces. Metalworkers, tool-and-die technicians, and maintenance professionals are the primary installers and users of this type of abrasive wheel.

Key Features

• Type 1 flat wheel profile with no recess for straightforward mounting
• 120-grit aluminum oxide abrasive for fine surface finishing
• Soft hardness rating promotes consistent grain release and reduces glazing
• Rated to 12,095 RPM maximum operating speed
• 1/4-inch arbor hole fits standard rotary tool and die grinder spindles
• Compact 3-inch diameter suited for confined surfaces and detailed work

Compatibility

Designed as an OEM-style replacement or standard consumable for bench grinders, die grinders, and rotary tools accepting a 1/4-inch arbor and compatible with Type 1 abrasive wheels up to 3 inches in diameter.

Installation Notes

Always power down and disconnect the tool from its power source before mounting or removing an abrasive wheel. Verify that the tool spindle speed does not exceed the 12,095 RPM maximum rating marked on this wheel before operation. Inspect the wheel for cracks or chips before each use and discard any damaged wheel immediately. Abrasive wheel installation and use should follow ANSI B7.1 safety standards and applicable employer safety guidelines.