Copper Titanium Tools are also certified for safe use in magnetic fields upto 3 Tesla.
. QTi Non Sparking, NonMagnetic Double End Open Wrench Set - 18 Nos consist of 1/2'' x 5/16'' , 5/16'' x 3/8'' , 3/8'' x 7/16'' , 7/16'' x 1/2'' , 1/2'' x 9/16'' , 5/8'' x 11/16'' , 11/16'' x 3/4'' , 13/16'' x 7/8'' , 13/16'' x 15/16'' , 15/16'' x 1'' , 15/16'' x 1-1/16'' , 1'' x 1-1/8'' , 1-3/16'' x 1-1/4'' , 1-1/4'' x 1-7/16'' , 1-7/16'' x 1-5/8'' , 1-5/8'' x 1-13/16'' , 1-13/16'' x 2'' , 2-1/16'' x 2-1/4'' . QTi Non Sparking, NonMagnetic Double End Open Wrench Set - 18 Nos Imperial Do not use cheater bars or use external leverage - Misuse not covered under warranty Copper Titanium Hand Tools are Certified for Safety as per IS 4595:1969 2006 Standards and are Torque Tested to IS 6131:1980 Standards.