Material: Aluminum Color: Black / Red Durable construction 7-piece blocks made of solid aluminum, anodized to protect router bits and saw blades from damage and wear. Versatile woodworking tools Includes 5-piece height gauges in various sizes and 2-piece hole gauges. These allow easy adjustment of the height of fences, blades, bits and other cutting tools as needed, offering a wide range of sizes or can be used individually for fast setup and measurement. Key benefits - Quick, repeatable height and depth settings for consistent results - Lightweight, corrosion-resistant, and durable - Compatible with a variety of cutting tools and setups - Anodized aluminum blocks protect tools and extend life Use scenarios - Set up a router table or table saw: use the height gauges and blocks to dial in fence height and blade depth for dados, rabbets, or precision cuts. - Change blades or bits: quickly remeasure and adjust to the correct height to maintain safe clearances and accurate cuts. - Drill and jig alignment: use the hole gauges to verify hole sizes and align jigs or guides for precise drilling operations. Specifications at a glance - 7-piece aluminum blocks (anodized) for protection of routers and saw blades - 5-piece height gauges in multiple sizes - 2-piece hole gauges - Color options: black or red - Intended for woodworking applications involving fences, blades, bits and other cutting tools