The best gas welding torch I've ever used! Great for helicopter airframes on thin or thick steel. Google your local supplier or buy online - sent direct to your door! (see links below) See the review for the earlier Dillon Mk 3 which the DHC2000 is based on at our homebuilt helicopter site here:
http://www.redbackaviation.com/store/detroit-torch-dhc2000-promaster-gas-welding-torch
http://www.redbackaviation.com/store/history-of-the-cobra-dhc-2000-gas-welding-torch
PURCHASE HERE
USA - ProMaster Kit - http://amzn.to/2sMnAnD
USA - Base Kit - http://amzn.to/2r4ayR8
CANADA - ProMaster Kit - http://amzn.to/2sDHOlH