4003 Engineer's Square Grade B 75mm (3in)
- Moore & Wright 4006, 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 4006 Engineers Square Grade B 150mm (6in) has the following specification: Blade
Size: 181.0 x 25.4mm. Stock
Size: 101.6 x 25.4mm. Inner Working: 82.4 x 155.6mm. Moore & Wright 4006 Engineer's Square Grade B 150mm (6in)