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PEC 12" 16R 4 Piece Combination Machinist Square with reversing Protractor Marked with 1/32", 1/64", 1/100", 1/10": Amazon.com: Tools & Home Improvement
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PEC 7118-012 4 Pc 12" 4R Cast Iron Combination Square Set-Non-Rev Prot: Construction Protractors: Amazon.com: Tools & Home Improvement
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