貼りたかったのはこれ？
http://www.stewmac.com/Luthier_Tools/Tools_by_Job/Tools_for_Necks_and_Fingerboards/Bridge_Heater_and_Fingerboard_Iron.html

なかなか
http://www.stewmac.com/How-To/Online_Resources/Learn_About_Repair_Tools_and_Repair_Techniques/Why_use_a_household_iron_on_a_fretboard.html

中華でも高いね
http://www.amazon.co.jp/dp/B076YYCDSL/