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STM Engineer's Precision Square 3"$25.19
Blade Length (Inch): 3 inch Bevel Edge: No Hardened spring steel blades are permanently fixed to the stock by means of tapered self-locking rivets which ensure complete rigidity. Both the blade and stock are precisely ground to ensure straightness and parallelism. _x000D_ Internal and external squareness as per BS 939 Grade B