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HSK 3-9/64" Rectangular Hard Sanding Block is a Festool hand sanding block designed for precise manual sanding. The ergonomic, comfortable design is easy on the hands, which supports longer sanding sessions on site or in the shop with less hand strain during repeat passes. The hard rectangular pad is built for edge work and corners, so it helps keep profiles crisp when refining cabinet parts, trim pieces, and tight inside areas. The rectangular design matches Festool 80 x 133 mm abrasives, giving a familiar footprint if you already work with that abrasive size. This hand block is perfect for detail sanding where power sanding would be too aggressive, letting you dial in final surfaces without removing too much material.
This Festool hand sanding block uses a hard rectangular pad that focuses pressure onto edges and corners, which helps clean up mill marks and small defects without rounding profiles. The 80 x 133 mm abrasive interface matches Festool abrasives sized for RTS 400 and LS 130 sanders, so abrasive sheets cut for those tools also fit this block. The ergonomic, comfortable shape helps hands stay aligned with the work surface, which supports flat contact along edges when dialing in final passes on cabinetry parts, furniture components, and finish trim pieces.
The hard rectangular pad for edge work and corners focuses this block on areas where powered sanders can be too aggressive or difficult to control, such as face-frame joints, door edges, and inside corners. By matching the Festool 80 x 133 mm abrasive format, the block slots into workflows already built around RTS 400 and LS 130 sanders, so you can move from machine sanding to hand detail work without changing abrasive size. It is perfect for detail sanding where power sanding would be too aggressive, giving more control when easing minor defects, refining profiles, or working close to adjacent finished surfaces. Ergonomic, comfortable design is easy on the hands, which supports steady control when feathering edges or blending small transitions.
The hard rectangular pad for edge work and corners resists flex, so pressure stays localized along edges, which helps maintain straight lines when flushing joints or breaking sharp corners lightly. This structure gives more predictable results when touch-sanding assembled components that need consistent reveals. Because the rectangular design is compatible with the full line of Festool 80 x 133 mm abrasives, one abrasive cut pattern serves both this block and Festool RTS 400 and LS 130 sanders, simplifying abrasive selection and storage. Using the same abrasives as the RTS 400 and LS 130 sanders ties the block directly into existing Festool abrasive systems, which supports efficient changeover from powered sanding to manual detailing, especially during final inspection and small-area corrections. The ergonomic, comfortable design keeps grip stable as pressure shifts between faces and edges, which helps repeat results across multiple parts.
The HSK 3-9/64" Rectangular Hard Sanding Block is perfect for detail sanding where power sanding would be too aggressive, so it suits fine tuning edges, corners, and small areas.
The hard rectangular pad for edge work and corners keeps pressure focused, helping maintain crisp lines and defined corners when refining cabinet parts or trim pieces.
The rectangular design is compatible with the full line of Festool 80 x 133 mm abrasives, so any abrasive in that Festool size fits the block.
The hand sanding block uses the same Festool 80 x 133 mm abrasives used with the RTS 400 and LS 130 sanders, supporting crossover between machine and hand sanding.
The block is perfect for detail sanding where power sanding would be too aggressive, and its hard rectangular pad targets corners and edges commonly found in cabinet and trim work.
The ergonomic, comfortable design is easy on the hands, so repeated sanding passes feel more manageable during longer sessions or multiple part runs.
The Festool HSK 3-9/64" Rectangular Hard Sanding Block combines an ergonomic, comfortable design with a hard rectangular pad, giving controlled hand sanding on edges and corners. Its compatibility with the full line of Festool 80 x 133 mm abrasives, including those used with RTS 400 and LS 130 sanders, ties directly into existing abrasive setups. For woodworking professionals and serious DIY users needing precise manual sanding where power sanding would be too aggressive, this hand block provides a focused way to refine surfaces, edges, and tight corners using familiar Festool abrasive formats.
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