4003 Engineer's Square Grade B 75mm (3in)
- Moore & Wright 4004, The Moore & Wright Engineer's Squares have a precision ground blade & stock & a blind riveted construction. The blade has been hardened & tempered for longer life. Conforms to B5939/ Grade B. The Moore & Wright 4004 Engineers Square Grade B 100mm (4in) has the following specification: Blade
Size: 130.2 x 25.4mm. Stock
Size: 76.2 x 25.4mm. Inner Working: 57.0 x 104.8mm. Moore & Wright 4004 Engineer's Square Grade B 100mm (4in)