Grier Abrasives T18-1-1/2B20697 Square Tip Plug 16 Grit

Product Description

The GRIER ABRASIVES T18-1-1/2B20697 is a Type 18 square tip abrasive plug designed for aggressive material removal in tight or contoured areas. It uses aluminum oxide grain bonded with a resinoid bond, rated at a very coarse 16 grit. The resinoid bond provides good shock resistance under heavy grinding loads, making this plug suitable for portable tool use. Rated to 24,000 RPM, it is compatible with threaded arbor spindles using a 3/8-24 arbor hole. Machinists, tool-and-die workers, and metalworking professionals typically use this type of mounted point for deburring, weld blending, and surface conditioning in areas that flat wheels cannot reach.

This abrasive plug is intended for use with die grinders and other rotary tools accepting a 3/8-24 threaded arbor. The Type 18 square tip geometry concentrates abrasive contact at the face and edge of the plug, making it well suited for working inside bores, slots, and recessed surfaces on ferrous and non-ferrous metals. It is sold individually and is appropriate for both production grinding environments and maintenance shop applications where controlled material removal is required on hard-to-reach workpiece features.

Key Features

• Type 18 square tip profile for face and edge grinding in confined areas
• Aluminum oxide abrasive grain for use on ferrous metals and general-purpose grinding
• Resinoid bond for shock resistance under moderate to heavy grinding pressure
• Very coarse 16 grit for fast, aggressive stock removal
• 24,000 RPM maximum speed rating for use with standard die grinders
• 3/8-24 threaded arbor hole for positive spindle engagement

Compatibility

Designed for use with die grinders and rotary tools that accept a 3/8-24 threaded arbor spindle. Meets standards C, IMA, and ISA as noted by the manufacturer.

Installation Notes

Mounting and operation of abrasive plugs should be performed by qualified grinding personnel following ANSI B11 and applicable shop safety codes. Always inspect the plug for cracks or damage before mounting and confirm the tool spindle speed does not exceed the 24,000 RPM maximum rating. Ensure the grinder is fully powered down and isolated before threading the plug onto the arbor spindle. Wear appropriate PPE including eye protection and gloves during installation and grinding operations.