Cratex 1340 C Rubberized Abrasive Taper Point Silicon Carbide

Product Description

The CRATEX 1340 C is an unmounted rubberized abrasive point in a taper shape, designed for precision deburring, blending, and surface finishing on metal, ceramic, and composite workpieces. It measures 0.625 inches at maximum diameter and 1 inch in overall length, with a 0.25-inch arbor hole for use with a rotary tool, die grinder, or flex-shaft machine. The abrasive matrix is silicon carbide at a coarse grade (36 grit), embedded in a rubberized bond that provides controlled, cushioned cutting action and reduces the risk of gouging delicate surfaces. Rated to 20,000 RPM, it is used in both production and maintenance environments by machinists, toolmakers, and metal fabricators.

This point is suited for internal deburring of bores, chamfering, and blending weld flash or casting parting lines where a rigid mounted point would be too aggressive. The taper profile allows access to angled surfaces, countersinks, and irregular contours. The unmounted configuration requires the operator to mount the point on a compatible mandrel or arbor with a 0.25-inch shank before use. Applications span aerospace, automotive, plumbing fitting fabrication, and general job-shop metalworking where consistent surface conditioning in tight areas is needed.

Key Features

• Taper shape provides access to angled surfaces, countersinks, and narrow contours
• Silicon carbide abrasive grain delivers fast stock removal on hard metals, ceramics, and carbide
• Rubberized bond cushions cutting action, reducing gouging risk on finished surfaces
• Coarse grade (36 grit) suited for aggressive deburring and flash removal
• 20,000 RPM maximum speed rating compatible with standard die grinders and rotary tools
• Unmounted format - requires a 0.25-inch arbor hole mandrel before use

Compatibility

Designed for use with rotary tools, die grinders, and flex-shaft machines that accept a mandrel or arbor fitting a 0.25-inch hole mount. No specific model compatibility data was provided by the manufacturer for this part.

Installation Notes

This point must be mounted on a compatible mandrel before use - confirm the mandrel shank matches the 0.25-inch arbor hole and is rated at or above 20,000 RPM. Inspect the point for cracks or delamination before each use and do not exceed the rated RPM, as overspeed can cause abrasive failure. Wear appropriate PPE including eye protection and gloves when operating rotary abrasive tools. Follow ANSI B7.1 and tool manufacturer guidelines for mounting and operation of abrasive accessories.