Big Horn 19274 2pc Precision Steel Square Set. This set of Two engineer's squares brings a high level of precision to every task. 9" and 12" squares let you choose the ideal size for every job: marking stock for careful joinery, checking tools for sharpening, verifying accurate assembly or making sure your tablesaw blade is set up perfectly. Hardened spring steel blades are fixed to the stock with self-locking tapered rivets to insure permanent accuracy. These all-steel squares are precision ground and tempered as described above. The case is a softwood and plywood construction. These cases are and very stable and do not warp.

• Made of Finest quality ground steel with heavy thick stock
• Blade is hardened and Ground for straightness and Parallelism
• Squares are accurate both inside and outside
• Designed fro precision layout and measurement work
• Squares are true right angles both inside & outside
• Length of blade is measured from corner edge of beam to end of blades