07Q149 - Walter 07Q149 QUICK-STEP Backing Pad 4.5 Inch

Industrial-Grade Backing Pad for Surface Conditioning

The Walter 07Q149 4-1/2" QUICK-STEP MG Backing Pad is a specialized accessory engineered to serve as the foundation of the QUICK-STEP surface finishing system. Designed for professional industrial environments, this backing pad distinguishes itself through its material composition and mechanical design. Unlike standard rubber or plastic pads that may warp or degrade under the high heat generated during aggressive sanding and polishing, this pad is manufactured from industrial-strength nylon. This material choice ensures that the pad retains both its structural strength and necessary flexibility, even when subjected to elevated temperatures during prolonged use on steel and stainless steel workpieces.

A critical feature of the 07Q149 is its patented centering pin technology. In surface conditioning applications, even minor eccentricity in the disc's rotation can lead to vibration, uneven finish patterns, and premature wear of the abrasive media. The integrated centering pin on this backing pad engages directly with compatible QUICK-STEP discs, guaranteeing a perfectly centered fit every time. This mechanical alignment significantly reduces operator fatigue caused by vibration and ensures a uniform contact patch with the work surface.

The interface utilizes a high-quality hook-and-loop (Velcro-style) system, which is essential for the rapid transitions required in multi-step finishing processes. Operators can switch from a blending disc to a polishing disc in mere seconds without the need for tools. The pad is equipped with a standard 5/8"-11 threaded arbor, making it compatible with the vast majority of 4-1/2" angle grinders used in North American fabrication shops. By combining thermal stability, mechanical precision, and ease of use, the Walter 07Q149 optimizes the performance of the entire abrasive assembly.