Use these to soften paint or anti-corrosion coatings which are fouling the the head you'll be attacking. Though the headline figures are similar these don't have the poke of full on induction heaters because a blast of hot air doesn't transfer heat as efficiently as direct induction. They will cause expansion and contraction of the fastener and/or shaft and help disrupt the corrosion. if used outside you must have appropriate electrocution protection.

Professional 2000W Heat Gun, AIUNAOM Fast Heating 50℃- 650℃ Hot Air Gun Dual Temp Settings for Paint Removing Heat Shrink Wrapping (Black)
5.0

SEEKONE 2000W Professional Hot Air Gun 50℃- 600℃ Variable Temperature Control with 2-Temp Settings, Overload Protection, Double Heating Wire Fast Heating, 7...
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JOJOrec Heat Gun, 2000W Professional Hot Air Gun 400℃ & 600℃ Dual-Temperature Settings, Overload Protection, Double Heating Wire Fast Heating, 6 Accessories...
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