Cratex 40012 Surface Grinding Wheel 120 Grit Type 1

Product Description

The CRATEX 40012 is a Type 1 surface grinding wheel designed for precision material removal and surface finishing on metal and similar substrates. Measuring 1 inch in diameter and 1/8 inch thick with a 1/8 inch arbor hole, this compact wheel is bonded with aluminum oxide abrasive at a 120 grit, fine grade. It carries a soft hardness rating, which allows the abrasive to release worn grains quickly and expose fresh cutting edges, maintaining consistent stock removal. Rated to a maximum of 36,290 RPM, it is suited for use with high-speed rotary tools and die grinders. Machinists, tool-and-die technicians, and maintenance trades install this type of wheel for detail grinding work.

This wheel is well suited for bench-mounted rotary tools, die grinders, and similar equipment where a small-diameter precision wheel is needed. The 120 grit fine grade makes it appropriate for finishing passes, deburring, and light surface conditioning rather than heavy stock removal. The compact 1 inch diameter allows access to tight workspaces and confined areas where larger wheels cannot reach.

Key Features

• Type 1 straight wheel profile for standard rotary tool and die grinder spindles
• 120 grit aluminum oxide abrasive for fine-grade surface finishing and deburring
• Soft hardness rating promotes consistent grain release and cutting efficiency
• Maximum rated speed of 36,290 RPM suitable for high-speed rotary applications
• Compact 1 inch diameter with 1/8 inch arbor hole fits standard small-tool collets
• No recess design for straightforward mounting

Compatibility

Designed as an OEM-style replacement or direct-use grinding wheel for rotary tools and die grinders accepting a 1/8 inch arbor and Type 1 straight wheel profile.

Installation Notes

Installation should be performed by a qualified machinist or trades professional familiar with abrasive wheel safety. Always confirm the tool spindle speed does not exceed the wheel maximum RPM rating of 36,290 before mounting. Inspect the wheel for cracks or chips before each use and discard any damaged wheel immediately. Follow ANSI B7.1 safe-use guidelines for abrasive wheels, including proper flanging and guard requirements.