T-23 T Handle Hex Wrench Model T-23 and T-25 were designed to give orthotists and technicans greater leverage on set screws. PRODUCTS PARTS Item No Reference UOM Name T-23 T-25 T-23 T-25 EA T-23T-23EAHex Wrench, T Handle 1/8in T-25T-25EAHex Wrench, T Handle 5/32in