Summit Steel Square have accurate right angles both inside and outside. Hardened spring steel blades are permanently fixed to the stock by means of tapered self locking rivets which ensure complete rigidity.
The Summit Engineers Square (AA Grade) is a high-precision layout and inspection tool designed for accurate right-angle measurement and verification. Crafted from the finest quality ground steel with a heavy thick stock and a hardened blade, these squares ensure superior straightness and parallelism. They feature accurate right angles on both inside and outside surfaces, making them essential for high-precision workshop applications.