Thumb Rule Length:900 mm With a chalkboard on one

With a chalkboard on one side and cleats to secure paper on the other

Available in two lengths and thicknesses

Table Size: 7-7/8" x 2-3/4"

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Thumb Rule Length:900 mm With a chalkboard on oneUsing the Pinnacle Thumb Rules to measure and mark adjacent faces of your boards is now easier than ever. Each rule is made from an aluminum extrusion, which features a continuous grip profile for handling and holding firmly against the workpiece. Rules are black anodized for wear protection, with white laser engraving for visual contrast. Both adjacent edges are engraved with left to right measurements. Features: Use to measure and mark adjacent