Home > Squares > Gladstone Machinist's Squares Machinist's Square 2" $6.00 Machinist's Square 3" $7.00 Machinist's Square 4" $9.00 Machinist's Square 6" $11.00 4 Piece Steel Engineer's Squares In Wooden Presentation Case $35.00 6 Piece Set of Machinist's Squares $65.00 Machinist's Square, 9" $16.00 12" Machinist's Square $21.00