CS Unitec Adjustable Spanner Wrench, Aluminum Bronze CS Unitec Non-Sparking / Non-Magnetic Adjustable Spanner Wrenches are a part of CS Unitecs Non-Sparking/Non-Magnetic and corrosion resistant Safety Tool Line. CS Unitec Non-Magnetic Adjustable Spanner Wrenches are specifically designed to eliminate the risk of sparks at high-risk sites where explosive atmospheres may be present. CS Unitec Non-Sparking Adjustable Spanner Wrenches are available in Aluminum Bronze. CS Unitec Non-Magnetic Adjustable Spanner Wrenches are designed with an adjustable jaw that loosens and tightens nuts and bolts. CS Unitecs Non-Sparking Adjustable Spanner Wrenches are drop forged for the highest quality in hand tools.