Reference & Application Guide Overview
This document serves as a reference and application guide for accessories used in abrasive applications, specifically focusing on rubber holders and backing pads. It provides guidelines on selecting the appropriate hardness of backing pads and holders based on the application and type of abrasive used.

Backing Pads
Backing pads are categorized by hardness: firm, medium, and soft. Firm pads are recommended for aggressive cutting with coarse grits and ceramic abrasives. Medium pads are suitable for all-purpose applications, while soft pads are ideal for contour grinding and finishing.

Operator Safety
Operators must adhere to ANSI Z87.1 and OSHA regulations, which include wearing safety glasses, ear muffs, gloves, and a dust mask. It is crucial not to exceed the recommended operating speed and to read all instructions carefully.

Rubber Holders
Rubber holders are also categorized by hardness: firm, medium, and soft. Firm holders are used for aggressive applications with coarse zirconia and ceramic abrasives. Medium holders are versatile for all-purpose applications, and soft holders are used for contour grinding and finishing.

Machine Compatibility
The accessories are compatible with various machine types, including right angle die grinders, die and pencil grinders, drills, electric and air-operated hand-held angle grinders, and sanders.

Air-Cooled Backing Pad
Designed for demanding applications, the air-cooled backing pad features a slotted hub design and curved ribs that draw cool air behind the disc, reducing loading and extending the disc's life. All pads have a 5/8"-11 threaded female hub for mounting.

Product Specifications
The document lists various rubber holders and backup pads with details such as item numbers, sizes, maximum RPM, and hardness. It also notes that other sizes and types are available upon request.

Conclusion
This guide provides essential information for selecting and using abrasive accessories safely and effectively, emphasizing the importance of matching the accessory type to the specific application and machine.