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47 bumper hard steel! try drilling it

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Old Feb 20, 2026 | 08:17 AM
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tony1947
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Exclamation 47 bumper hard steel! try drilling it

hi,all hay I am trying to drill two 1/2 holes in my front bumper for my new/old grille gard. Are they spring steel or what ? good bits just go dull . maybe I will use felcro !!!
 
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Old Feb 20, 2026 | 08:33 AM
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Try a carbide drill bit. Slow speed with cutting fluid.
 
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Old Feb 20, 2026 | 11:53 AM
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Not on a bumper, but I've used a stick welder to pierce holes in spring steel. Cleaned up the holes with a small grinding stone. Good luck!
 
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Old Mar 12, 2026 | 12:15 PM
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grill gard on !

finally! hardest steel ever to drill, but worth it!
 
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Old Mar 13, 2026 | 11:55 PM
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I like your grill guard! Mine had the remains of a clamp on attachment system, so I copied what was there to make the rest. More pics of tour truck?
 
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