Pferd 42740005 Quick-change Disc 1-1/2 in 120 Grit Diamond

Product Description

The PFERD 42740005 is a quick-change coated abrasive disc designed for precision grinding and surface finishing on hard materials including ceramics, carbide, stone, and hardened steel. Built around a diamond abrasive matrix at 120 grit (Grade D126), this disc delivers consistent cut rates on surfaces that would wear conventional aluminum oxide or zirconia discs prematurely. The fiber-backed disc measures 1-1/2 inches in diameter and mounts via a Type S attaching system for rapid disc changes without tools. Maximum rated speed is 10,000 RPM. It is suited for use in die grinders and right-angle grinders equipped with a compatible CD-type mandrel. Installers, machinists, fabricators, and tool-and-die technicians are the primary users of this disc.

This disc is intended for applications requiring fine material removal or finishing on extremely hard substrates. Typical use scenarios include deburring carbide inserts, dressing ceramic components, smoothing hardened tooling surfaces, and light stock removal in tight or contoured areas where a small-diameter disc provides better access than larger abrasive formats. The 1-1/2-inch diameter makes it well-suited for confined workspaces. It is used in both maintenance shop and production line environments across metalworking, tool grinding, and industrial fabrication trades.

Key Features

• Diamond abrasive material for aggressive cutting on hard and ultra-hard substrates
• 120 grit (Grade D126) provides a balance of material removal and surface finish quality
• Type S quick-change attaching system allows fast, tool-free disc swaps
• Fiber backing provides rigidity and durability during grinding operations
• 1-1/2-inch diameter suited for confined areas and detailed work
• Rated to 10,000 RPM for use with standard pneumatic and electric die grinders

Compatibility

Compatible with CD-type quick-change mandrels using a Type S attaching system. Designed for use in die grinders and small right-angle grinders that accept 1-1/2-inch quick-change discs with a Type S interface.

Installation Notes

Installation and disc changes should be performed with the grinder fully powered down and air supply disconnected or power unplugged. Verify the mandrel is rated for the disc diameter and that the tool spindle speed does not exceed the 10,000 RPM disc rating before operation. Inspect the disc for cracks or damage before each use and discard any disc showing signs of deterioration. Eye protection and appropriate PPE are required when operating abrasive tools per ANSI B11 and OSHA abrasive wheel standards.