Tru-maxx RESIN-78 Diamond Cutoff Wheel 6 in Type 1A1R 150 Grit

Product Description

The TRU-MAXX RESIN-78 is a Type 1A1R diamond cutoff wheel designed for precision cutting on hard, abrasive materials. Measuring 6 inches in diameter and 0.035 inches thick with a 1-1/4 inch arbor hole, it mounts directly on standard angle grinders. The wheel uses a 150-grit diamond abrasive bonded with a resinoid bond and carries a Hardness Code N rating. A 9/32 inch superabrasive depth and 100 concentration rating indicate a fully loaded cutting edge that holds up through demanding cut cycles. Fabricators, tile setters, and stone masons will find this wheel suited to high-precision cutoff work where wheel life and cut quality matter.

This wheel is intended for use with angle grinders that accept a 1-1/4 inch arbor and accommodate a 6-inch diameter wheel. It is applicable to dry or wet cutting of hard materials such as ceramics, concrete, stone, and similar substrates depending on the workpiece and operating conditions. The Type 1A1R profile is a straight, flat cutoff geometry, meaning the wheel sits flush in the cut rather than presenting a recessed or dished face. This geometry is common in shop and field cutting tasks where a clean, narrow kerf is required.

Key Features

• 150-grit diamond abrasive for controlled, precise cutting on hard materials
• Type 1A1R straight-wheel profile delivers a flat, narrow kerf geometry
• Resinoid bond system absorbs vibration and resists wheel breakdown under load
• 9/32 inch superabrasive depth provides extended wheel life across multiple cut cycles
• 100 concentration diamond loading maximizes cutting efficiency per pass
• Hardness Code N rating balances bond retention with controlled wear

Compatibility

Designed for use with angle grinders that accept a 6-inch diameter wheel and a 1-1/4 inch arbor hole. Verify that the grinder spindle speed does not exceed the maximum RPM rating marked on the wheel before mounting.

Installation Notes

Mounting and operation of cutoff wheels should be performed by qualified personnel following ANSI B7.1 safety standards for the use, care, and protection of abrasive wheels. Disconnect and lock out power to the grinder before installing or removing the wheel. Inspect the wheel for cracks or chips before each use and never operate a damaged wheel. Always use the appropriate guard and personal protective equipment, including eye and face protection, during operation.