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Brown&sharpe # 542 master square .0003" accy calibrated


Current list for a new starrett #55 of same 6" size and beveled edge is $241.00 on page 1347 of the msc big book save some $$$ here!! Brown&Sharpe no longer makes these squares but does sell their CHINESE line of squares.
THIS SQUARE LOOKS TO BE IN VERY GOOD USED CONDITION. EVERYTHING WE CHECK WITH IT IS CORRECT TO OUR CURRENTLY CALIBRATED MASTER SQUARE BUT IT IS USED. THERE IS ENGRAVING AS SHOWN ON THIS VERY NICE HANDY EXPENSIVE INSPECTION SQUARE.
The finest precision-checking squares~~~~ not graduated. Squareness accuracy to .0003" per 6" of length.
The finest precision-checking squares not graduated. Squareness accuracy to .0002" (0.0025mm) every 12" (150mm)
6" blade and a 4-5/16" beam on this square no. 542. Blade measures 7-3/16" across the top of blade and 6-1/8" on bottom of blade.
SQUARE IS A VERY NICE SIZE FOR MOST TOOL-ROOMS.



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