Cratex 1357 C Rubberized Abrasive Cone Point Coarse Silicon Carbide

Product Description

The CRATEX 1357 C is a rubberized abrasive point in a cone shape, designed for deburring, blending, and surface finishing on metals and hard materials. It measures 0.875 inches in maximum diameter and 1.25 inches in length, with a 0.25-inch arbor hole for use with rotary tools, die grinders, and flexible shaft machines. The abrasive matrix is silicon carbide at a coarse grade (36 grit), making it well-suited for aggressive stock removal and fast cutting on ferrous and non-ferrous metals, ceramics, and hard plastics. This is an unmounted point, sold individually, rated to a maximum of 20,000 RPM.

Rubberized abrasive points like the CRATEX 1357 C are used in tool and die shops, maintenance and repair operations, and production finishing environments. The cone geometry allows access to internal contours, holes, slots, and curved surfaces where flat or cylindrical abrasives cannot reach. Typical applications include cleaning up weld seams, chamfering bolt holes, smoothing casting flash, and blending machined surfaces. It is commonly used by machinists, tool and die makers, and metal fabricators working with benchtop or handheld rotary equipment.

Key Features

• Cone shape for access to contoured surfaces, internal radii, and recessed areas
• Silicon carbide abrasive matrix provides fast, aggressive cutting action
• Coarse grade (36 grit) suited for rapid stock removal and deburring
• Rubberized bond offers some flexibility, reducing chipping risk on intricate workpieces
• Unmounted design fits standard 0.25-inch arbor collets on die grinders and rotary tools
• Rated to 20,000 RPM for use with high-speed rotary equipment

Compatibility

Designed for use with rotary tools, die grinders, and flexible shaft machines fitted with a 0.25-inch collet or mandrel. Suitable for use on metals, ceramics, hard plastics, and similar materials requiring abrasive finishing or deburring.

Installation Notes

Install the point into a collet or mandrel sized for a 0.25-inch arbor and tighten securely before operation. Verify that the tool spindle speed does not exceed the 20,000 RPM rating of this point. Always wear appropriate eye protection and secure the workpiece before grinding. Inspect the abrasive point for cracks or damage before each use and discard if the bond shows signs of deterioration.