15-Piece Precision Setup Bar Set Includes 15 solid aluminum blocks in inch sizes for fast, repeatable setup of router bits, saw blades, and fences. -Etched Markings for Easy Reading Each bar features clear, wear-resistant markings in both fractional and decimal inch values. Anodized Aluminum Construction Made from lightweight, corrosion-resistant anodized aluminum for long-lasting accuracy and easy handling. for Woodworking Calibration Tasks for setting blade height, bit depth, and fence spacing in table saws, routers, and joinery jigs. Protective Storage Case Included Comes with a compact, foam-lined case for organized storage and quick access in the workshop or on-site.